Supplementary MaterialsSupplementary information 41598_2017_2489_MOESM1_ESM. cells resulting in significant G2/M arrest. 5g treatment resulted in elevated levels of ROS and consequently, DNA double-strand breaks (DSBs) explaining observed G2/M arrest. Consistently, we observed deregulation of many cell cycle associated proteins such as CDK1, BCL2 and their phosphorylated form, CyclinB1, CDC25c etc. Besides, 5g treatment led to decreased levels of mitochondrial membrane potential and activation of apoptosis. Interestingly, 5g administration inhibited tumor growth in mice without significant side effects. Therefore, our study identifies 5g like a potent biochemical inhibitor to induce G2/M phase arrest of the cell cycle, and demonstrates its anticancer properties both and studies using mouse tumor model showed G2/M arrest in tumor cells leading to tumor regression without exhibiting significant side effects. Results 5g inhibits growth of various tumor cell lines Inside a earlier study, we have reported synthesis, characterization and structure-activity relationship of a series of compounds derived from benzothiazole derivatives15. In the present study we have screened a series of cancer cell lines of various origins (Nalm6, Molt4, CEM, MCF7, EAC, T98G, HeLa and HCT116) against the most potent molecule based on previous study (5g) (Fig.?1A). MTT assay results showed that 5g could efficiently inhibit the growth of leukemic cell line Nalm6, followed by Molt4, CEM, MCF7, EAC, HCT116, T98G, and HeLa cells. GI50 was estimated to be 11, 17.9, 33.6, 39.4, 50.3, 55.3, 65.2 and 73.1?M respectively for these cell lines (at 48?h) (Fig.?1B,C). Since Nalm6 cells exhibited maximum sensitivity towards 5g, Penthiopyrad it was selected for subsequent studies. Open in a separate window Figure 1 Evaluation of antiproliferative activity of 5g in various cancer cells. (A) 2-dimensional structure of 5g. (B) Antiproliferative activity of 5g (0, 1, 10, 50 and 100?M at 48?h) was tested in Nalm6, Molt4, CEM, EAC, HCT116, T98G, MCF7 and HeLa cells using MTT assay. (C) Table showing observed GI50 values??SEM of 5g in various cancer cell lines. 5g induces cell death in leukemic cells more efficiently than in normal cells Cytotoxic aftereffect of 5g was likened between regular cells and leukemic cells. To be Penthiopyrad able to assess this, PBMCs and Nalm6 cells had been treated with raising concentrations of 5g (0, 1, 10 and 50?M, 48?h) and cell loss of life was analysed using movement cytometry following staining with Propidium Iodide (PI). Outcomes showed a substantial upsurge in 5g induced cell loss of life in Nalm6 cells (~70% cell loss of life at 50?M) in comparison to PBMCs (~25% cell loss of life in 50?M) (Fig.?2). This observation shows that 5g could possibly be much less toxic in regular cells in comparison to tumor cells. Aftereffect of 5g treatment in Nalm6 cells was evaluated by employing an unbiased assay, using Ethidium and Calcein-AM homodimer staining. 5g treated (0, 5, 15 and 30?M; 48?h) Nalm6 cells showed significant positive staining for Penthiopyrad Ethidium homodimer, even though amount of Calcein-AM stained positive cells decreased, indicating cell loss of life upon 5g treatment (Suppl. Fig.?1A,B). Further confocal microscopy imaging verified the induction of cell loss of life upon treatment with 5g in Nalm6 cells (Suppl. Fig.?1C). Open up in another window Shape 2 Assessment of cytotoxic ramifications of 5g in tumor cells and regular cells. (A,B) Cytotoxic aftereffect of 5g was likened between Nalm6 cells and PBMCs (B). Cells treated with 5g (0, 1, 10 and 50?M; 48?h) were put through FACS evaluation following staining with Propidium Iodide. Dot plots representing aftereffect of different focus of 5g on Nalm6 cells (A) and PBMCs Penthiopyrad (B). (C,D) Propidium Iodide positive cells had been quantified, plotted like a pub diagram for Nalm6 (C) and PBMCs (D) respectively (n?=?2). Statistical significance was determined using college student t-test and significance was demonstrated if the p-value Tcf4 was add up to or significantly less than 0.05 (*0.05, **0.005, ***0.0005). 5g induces powerful G2/M arrest in tumor cells The result of 5g on cell routine progression was analyzed in various tumor cells after 24?h of treatment with different concentrations from the inhibitor (0, 10, 20 and 30?M). Leukemic cell lines (Nalm6, K562, REH, and Molt4), breasts cancer cell.
Data Availability StatementAll datasets generated because of this study are included in the article. of cartilage and small intestine via rules of several inflammatory mediators in an OA murine model. These results suggest that IL-17 takes on a critical part in the development of OA. = 4) and IL-1Ra KO (= 3) mice in Numbers 1C3 and IL-1Ra KO (= 3) and IL-17 and IL-1Ra double-deficient (= 4) mice in Numbers 4, ?,55 were injected intra-articularly with 0.6 mg monosodium iodoacetate (MIA) (Sigma, United States) inside a 20 L into the right knee via a Hamilton syringe (22); control mice were injected with an equal volume of saline. Mice underwent screening to measure nociceptive threshold on days 0, 7, 14, 21, or 28 after injection of MIA or saline. Animals were sacrificed on day time 21 or 28 after MIA injection. Three independent experiments were performed. Open in a separate window Number PTPRR 1 IL-1Ra deficient mice injected with MIA are more sensitive to discomfort and the procedure promotes articular cartilage harm. (A) BALB/c and IL-1Ra KO mice had been injected intra-articularly with 0.6 mg (±)-WS75624B MIA in the proper knee. Behavioral lab tests of supplementary tactile allodynia in MIA-injected BALB/c and IL-1Ra KO mice and neglected BALB/c and IL-1Ra (±)-WS75624B KO mice had been evaluated utilizing a powerful plantar esthesiometer (BALB/c = 5, IL-1Ra KO = 4, BALB/c MIA = 4, IL-1Ra (±)-WS75624B KO MIA = 3). (B) At 3 weeks following the MIA shot, parts of articular tissues (±)-WS75624B from mice had been stained with Safranin O and we evaluated the severe nature of Mankin and OARSI ratings. Representative histological features are proven (primary magnification 200). Three unbiased experiments had been performed. Data are proven as means SDs. *** 0.001 vs. MIA-injected BALB/c group (One-way ANOVA accompanied by Bonferroni check). Open up in another screen Amount 4 IL-17 insufficiency ameliorates cartilage and discomfort harm. IL-1Ra KO mice and IL-17-lacking IL-1Ra double-deficient mice (DKO) had been injected with 0.6 mg MIA in the proper knee. (A) Behavioral lab tests of supplementary tactile allodynia in MIA-injected IL-1Ra KO mice and IL-1Ra and IL-17 double-deficient mice had been evaluated utilizing a powerful plantar esthesiometer (IL-1Ra KO MIA = 3, DKO MIA = 4). Experimental mechanical pain was analyzed using the PWT. (B) At 4 weeks after the MIA injection, sections of articular cells from mice were stained with Safranin O and we evaluated the severity of Mankin and OARSI scores. Representative histological features are demonstrated (unique magnification 200). Three self-employed experiments were performed. Data are means SDs. ** 0.001, *** 0.001 MIA-injected IL-1Ra KO mice group vs. MIA-injected DKO [2-tailed = 2) (UC14CNSI0150). One individual has a KL equal to 3 and the other one to 4, as determined by scoring of the individuals x-ray radiographs by an orthopedic (±)-WS75624B doctor prior to surgery treatment. Cartilage from the patient was digested and reacted with 0.5 mg/mL hyaluronidase, 5 mg/mL protease type XIV, and 2 mg/mL collagenase type V. The isolated chondrocytes were seeded in 24-well plates at 2 104 cells/well and treated with IL-17 (10 and 50 ng/mL) for 24 or 48 h. Real-Time Polymerase Chain Reaction (PCR) Messenger RNA (mRNA) was isolated from human being chondrocytes using the TRI reagent (Molecular Study Center, United States) and complementary DNA was synthesized from your RNA. A LightCycler 2.0 instrument (Roche Diagnostics, software version 4.0) was utilized for PCR amplifications. Relative expression of specific mRNA was quantified by real-time PCR using SensilFAST SYBR (Bioline, United States). The following sense and antisense primers were used: for MMP1, 5-CTG AAG GTG ATG AAG CAG CC-3 (sense) and 5-AGT CCA AGA GAA TGG CCG AG-3 (anti-sense); for MMP3, 5-CTC ACA GAC CTG Take action CGG.
Supplementary MaterialsS1 Appendix: Excel spreadsheet containing uncooked data from the study. prevent secondary infections. Intro Myiasis, the parasitic infestation of live mammals by take flight larvae (maggots), is an extension of the carrion-feeding practices of blowflies . Gravid females of myiasis-inducing flies such as botfly (Oestridae) and blowfly (Calliphoridae) are captivated and stimulated to lay their eggs on open wounds and even natural body openings of living mammals body by a variety of cues, predominantly olfactory ones . On hatching of the eggs, the larvae invade the broken feed and pores and skin within the hosts living or deceased tissues and body liquids . Myiasis, is normally an internationally severe vet and medical issue. In humans, it really is a problem of neglected wounds [3; 4]. In hospitals Particularly, the nourishing actions of larvae may lead bedridden sufferers to build IACS-8968 R-enantiomer up cutaneous lesions quickly, additional oviposition, debilitation, and loss of life. Furthermore, blowflies can become providers of pathogenic bacterias [5; 6; 7]. The larvae of myiasis-inducing flies have an effect on both outrageous  and local mammals increasing both financial and pet welfare problems . In pet husbandry over the global globe, the most frequent infected host may be the local sheep, where cutaneous flystrike or myiasis, is mainly due to blowflies from the genus (Diptera Calliphoridae) . Flystrike is normally a problem for the sheep sector. It can bring about sheeps serious tissues injuries, lack of efficiency and reproductivity and in the pets loss of life  eventually. In wool-producing countries, flystrike kills an incredible number of minds of sheep a complete calendar year . In Australia, the annual costs of flystrike, including reduction and mortality of creation, have been approximated at up to 280 million A$ . IN THE UK, myiasis was proven to IACS-8968 R-enantiomer have an effect on 75% of farms , with around cost around 3 million GBP  a calendar year. Presently, the prophylaxis against flystrike depends on artificial insecticides, such as for example organophosphates and insect development regulators (benzoylphenyl ureas, cyromazine and dicyclanil) [16; 17; 12] and, specifically for Merino lambs in Australia’s comprehensive wool sector, on painful operative husbandry procedures like the docking as well as the mulesing [18; 19]. Nevertheless, the aspect ramifications of artificial insecticides, such as the development of insect resistance , the harmful effects on sheep , farmers , and the environment , as well as the rising concerns about animal welfare  have made alternate strategies a high priority. In recent years, essential oils (EOs) of aromatic vegetation species have captivated great attention as natural products that can efficiently act as insecticides and repellents against insect pests [25; 26; 27; 28; IACS-8968 R-enantiomer 29]. Moreover, since EOs usually have a low toxicity to mammals , and high biodegradability, they may be regarded as very promising substances for the formulation of low-toxic, eco-friendly pest control products .The common green bottle fly (Meigen) (Diptera Calliphoridae) (Fig 1) is a common blowfly frequently found in synanthropic and natural ecosystems in most areas of the world and, along with (Wied.), and (L.), it is a common cause of human being and animal cutaneous myiasis [32; 33]. H3F3A Open in a separate windowpane Fig 1 Adult of (Meigen) (Diptera Calliphoridae). (Kunth) Kuntze (Lamiaceae) is definitely a typical flower of the high mountains of Ecuador, with an overpowering smell, well known and mainly used by local people for its beneficial properties. Such varieties is definitely widely spread in the Andean region of South America, where it is known as tipo de cerro . It is.
Data Availability StatementThe datasets of “type”:”entrez-geo”,”attrs”:”text message”:”GSE107499″,”term_identification”:”107499″GSE107499, “type”:”entrez-geo”,”attrs”:”text message”:”GSE8671″,”term_identification”:”8671″GSE8671, and “type”:”entrez-geo”,”attrs”:”text message”:”GSE32323″,”term_identification”:”32323″GSE32323 can be acquired from Gene Manifestation Omnibus. of 237 indicated genes common towards the three datasets had been determined differentially, which 60 had been upregulated, 125 had been downregulated, and 52 genes free base inhibitor which were inconsistently up- and downregulated. Common differentially indicated genes had been primarily enriched in the mobile element of extracellular exosome and essential element of membrane categories. Eight hub genes, i.e., were shown to have diagnostic value with respect to the occurrence of colorectal cancer and should be verified in future studies. 1. Introduction Colorectal cancer (CRC) is usually a common malignant tumour of the digestive system. In 2018, 1,800,977 new cases of CRC were identified globally, and the number of deaths attributed to the disease was 861,663 . CRC cells have a strong a strong ability to invade and migrate. Postoperative recurrence and metastasis are the main causes of loss of life in sufferers with CRC . Although comprehensive treatment measures employed in recent years have improved the five-year survival rate of CRC patients, overall outcomes of treatment remain poor . The occurrence of CRC is usually closely related to ulcerative colitis (UC) and colorectal adenoma (CRA). Previous studies have shown that repeated stimulation of chronic inflammation is an important factor in the aetiology and pathogenesis of tumours [4, 5]. UC is usually a nonspecific chronic inflammatory disorder, mainly involving the rectal and colonic mucosa. Typical symptoms include abdominal pain, diarrhoea, purulent stools with blood, and tenesmus. One study found that the risk of CRC in patients with UC is about 10 times higher than that of healthy people. With prolongation of the disease course, the rate of developing CRC in patients with UC over a period of 30 years is about 20% . Furthermore, cancer associated with UC AIbZIP can progress via an inflammation-dysplasia-cancer sequence . Dysplasia, defined as free base inhibitor free base inhibitor the abnormal development of the neoplastic epithelium that is limited above the basement membrane, is the most reliable hallmark of UC patients with increased risk of malignancy . Dysplasia in UC has two different types free base inhibitor of growth patterns, which are either adenoma-like or non-adenoma-like dysplasia-associated lesion or mass (DALM) . Among them, colorectal adenoma-like dysplasia (CRA) has been recognized as precancerous lesions of CRC. In patients with UC, the incidence of CRA can reach 7.5% [10C16]. Moreover, more than 80% of sporadic CRC is usually transformed from CRA [17C19]. The average time that it takes for CRA with moderate atypical hyperplasia to progress to cancer is usually 18 years, and the average time that it takes from severe atypical hyperplasia is usually 3.6 years . In short, UC and CRA are important transitional stages in the progression of CRC. With the development of molecular biology technologies, diagnostic markers and gene therapies have the potential to improve the diagnosis and treatment of patients with CRC. Some gene biomarkers, such as mRNA and miRNAs, have been previously identified to correlate with CRC and developed as diagnostic tools to predict the occurrence, progression, and prognosis of CRC [21C24]. However, the identification of biomarker genes has only been focused on a single stage of CRC in many studies [25C28]. By considering all stages of disease progression, researchers can identify more accurate and targeted diagnostic gene biomarkers to be applied in clinical practice. In this scholarly study, we utilized bioinformatic solutions to recognize common differentially portrayed genes (DEGs) in UC, CRA, and CRC in comparison to regular tissue. Gene Ontology (Move) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses had been performed, accompanied by the structure of the protein-protein relationship (PPI) network to display screen for hub genes. Kaplan-Meier (Kilometres) survival evaluation and TIMER data source analysis had been used to display screen the genes linked to the prognosis and tumour-infiltrating.
Objective: A combined mix of bortezomib, cyclophosphamide, and dexamethasone works well in the treating newly diagnosed multiple myeloma highly. greatest response was 71 (55C87) times. Median progression-free success was 33 (2C56) a few months, and autologous stem cell transplantation was performed for 68.8% of sufferers. Five sufferers (31.25%) experienced Grade I and one individual (6.25%) Grade III (no Grade 2 or 4) of peripheral neuropathy. Dosage reduction and medication discontinuation was needed in one affected person (6.25%). Bottom line: A lower life expectancy subcutaneous, every Quizartinib price week dose of bortezomib in conjunction with dexamethasone and cyclophosphamide works well with controllable profile toxicity and appropriate cost. strong course=”kwd-title” KEYWORDS: em Bortezomib /em , em multiple myeloma /em , em neuropathy /em Launch Multiple myeloma is certainly a plasma cell neoplasia seen as a hypercalcemia, anemia, renal failing, and bony lytic lesions. Within the last 20 years, the procedure and medical diagnosis of disease possess improved, as well as the myeloma provides transformed from a fatal disease to a treatable but incurable disease. The occurrence of disease elevated by 126% from 1990 to 2016. Multiple myeloma makes up about 17% of hematologic malignancy in america. Newly diagnosed sufferers ought to be assessed for autologous bone tissue marrow transplantation. Sufferers qualified to receive hematopoietic cell transplantation (HCT) receive induction chemotherapy, accompanied by high-dose HCT and chemotherapy. Sufferers ineligible for HCT receive induction chemotherapy accompanied by maintenance therapy before development generally. Various combos of regimens for induction therapy are utilized. Corticosteroid, immunomodulatory agencies, proteasome inhibitors, and alkylating agencies are most common medications which used within a mixture program generally. Bortezomib is certainly a 1st-generation proteasome inhibitor which used for de novo and relapsed myeloma.[3,4] The usage of bortezomib appears to be a substantial evolution in the treating the condition. The response price with bortezomib varies with a mixture regimen which used. Peripheral neuropathy is certainly a significant side-effect of bortezomib, albeit it appeared reversible in most sufferers, but dosage Quizartinib price decrease and medication discontinuation are essential for palliation. Subcutaneous injection and weekly injections can be used to reduce bortezomib induce neuropathy. Subcutaneous infusion of bortezomib compared to intravenous administration acquired an improved basic safety profile with noninferior efficiency. Weekly injection in comparison to twice-weekly dosage in relapsed/refractory myeloma had comparable outcomes with lower price neuropathy. Regardless of these unwanted effects, bortezomib can be an expensive medication but may very well be cost effective weighed against other combinations such as for example melphalan, prednisolone, thalidomide, or lenalidomide. Jagannath em et al /em . reported that in refractory or relapsed multiple myeloma decreased dosages of bortezomib, 1 mg/m2, in comparison to regular treatments, acquired comparable general response price and more affordable toxicity, such as for example neuropathy. Bortezomib had found in a various combination regimen. Three medication combos of bortezomib, cyclophosphamide, and dexamethasone (CyBorD) will be the first-line regimen for the original treatment in recently diagnosed sufferers with high response price. This research designed to measure the efficacy of decreased dosages of bortezomib in the treating newly diagnosed multiple myeloma sufferers. In this scholarly study, Quizartinib price we measure the efficiency and undesireable effects of once every week subcutaneous decreased dosages of bortezomib 1 mg/m2 in the CyBorD program. METHODS This is an interventional research conducted on sufferers with multiple myeloma from 2014 to 2017. Sixteen recently diagnosed sufferers (a long time: 44C64-year-old) predicated on the International Myeloma Functioning Group up to date the criteria contained in the research, who described Omid Medical center, Isfahan, Iran. Prior to starting treatment benefits and unwanted effects of treatment told the sufferers obviously, after which, most of them browse and agreed upon the consent type. Sufferers with concurrent disease that induced neuropathy, serious center and pulmonary disease, signals of amyloid light-chain amyloidosis, and recurrent or refractory myeloma excluded in the scholarly research. Sufferers treated with bortezomib 1 mg/m2 subcutaneously, cyclophosphamide 300 mg/m2 intravenously, and dexamethasone 40 mg intravenously times 1, 8, 15, and 22 of the 28 days routine. All medications had been administered every week for 4 consecutive weeks. At the ultimate end of every routine, laboratory findings had been evaluated, and sufferers categorized as comprehensive, acceptable incomplete, and partial response (PR) based on the International Myeloma Working Group consensus criteria. Individuals with at least PRs, who have been eligible for HCT, referred for transplantation, and for individuals with stable disease after two cycles and individuals with progressive disease option treatment were used. Neurologic exam was performed for those individuals at baseline and beginning of each period. Bortezomib induces peripheral neuropathy graded per National Malignancy Institute common toxicity criteria for adverse events. RESULTS Sixteen individuals with diagnosed multiple myeloma were evaluated recently. The mean age group was 54 (44C64) years. Sixty-two percent had been guys, and 38% had been females. 37.5%, 50%, and 12.5% Mouse monoclonal antibody to Tubulin beta. Microtubules are cylindrical tubes of 20-25 nm in diameter. They are composed of protofilamentswhich are in turn composed of alpha- and beta-tubulin polymers. Each microtubule is polarized,at one end alpha-subunits are exposed (-) and at the other beta-subunits are exposed (+).Microtubules act as a scaffold to determine cell shape, and provide a backbone for cellorganelles and vesicles to move on, a process that requires motor proteins. The majormicrotubule motor proteins are kinesin, which generally moves towards the (+) end of themicrotubule, and dynein, which generally moves towards the (-) end. Microtubules also form thespindle fibers for separating chromosomes during mitosis of patients were in International Staging System, Stage I, II, and III, respectively. Fifteen sufferers acquired symptomatic disease (DurieCSalmon Stage II or III). Various other.
Supplementary Materialsmolecules-25-02059-s001. (brs, 1H, NH), 7.34 (t, = 7.6 Hz, 2H, ArH), 7.27= 6.3 Hz, 2H, OCH2), 4.10 (q, = 6.4 Hz, 2H, NCH2), 1.92 (s, 3H, CH3), 1.26 (t, = 7.1 Hz, 3H, CH3). HRMS (ESI) calcd for C13H17NO2Na [M+Na]+: 242.1151, found: 242.1151. (3b). Colorless liquid 937174-76-0 (35.1 g, 98%). 1H-NMR (CDCl3) 8.65 (brs, 1H, NH), 7.30 (t, = 7.3 Hz, 2H, ArH), 7.24= 7.1 Hz, 2H, OCH2), 3.45= 7.6 Hz, 2H, PhCH2), 1.82 (s, 3H, CH3), 1.25 (t, = 7.1 Hz, 3H, CH3). HRMS (ESI) calcd for C14H19NO2Na 937174-76-0 [M+Na]+: 256.1308, found: 256.1307. (3c). Colorless liquid (29.0 g, 92%). 1H-NMR (DMSO-= 0.4 Hz, 1H, C=C-H), 4.06 (q, = 7.1 Hz, 2H, CH2), 2.01 (s, 3H, CH3), 1.20 (t, = 7.1 Hz, 3H, CH3). HRMS (ESI) calcd for C12H16NO2 [M+H]+: 206.1176, found: 206.1170. (3d). Colorless liquid (30.2 g, 94%). 1H-NMR (CDCl3) 8.80 (brs, 1H, NH), 7.35 (d, = 1.4 Hz, 1H, ArH), 6.31C6.30 (m, 1H, ArH), 6.19 (d, = 3.2 Hz, 1H, ArH), 4.52 (s, 1H, C=C-H), 4.37 (d, = 6.3 Hz, 2H, NCH2), 4.08 (q, = 7.1 Hz, 2H, OCH2), 1.99 (s, 3H, CH3), 1.24 (t, = 7.1 Hz, 3H, CH3). HRMS (ESI) calcd for C11H15NO3Na [M+Na]+: 232.0949, found: 232.0949. (3e). Colorless liquid (30.8 g, 95%). 1H-NMR (CDCl3) 8.63 (brs, 1H, NH), 4.39(3f). Colorless liquid (25.3 g, 96%). 1H-NMR (CDCl3) 8.50 (brs, 1H, NH), 4.39 (s, 1H, C=C-H), 4.10C4.06 (m, 2H, OCH2), 3.70C3.66 (m, 1H, CH), 1.94 (s, 3H, CH3), 1.26C1.23 (m, 3H, CH3), 1.21-1.20 (m, 6H, 2CH3). HRMS (ESI) calcd for C9H18NO2 [M+H]+: 172.1332, found: 172.1335. (3g). White solid (1.82 g, 95%). M.p. 53C54 C. 1H-NMR (CDCl3) 10.14 (brs, 1H, NH), 7.01 (d, Igf1r = 8.8 Hz, 2H, ArH), 6.84 (d, = 8.9 Hz, 2H, ArH), 4.64 (s, 1H, C=C-H), 4.16= 7.0 Hz, 2H, OCH2), 1.88 937174-76-0 (s, 3H, CH3), 1.41 (t, = 7.0 Hz, 3H, CH3), 1.28 (t, = 7.1 Hz, 3H, CH3). HRMS (ESI) calcd for C14H19NO3Na [M+Na]+: 272.1257, found: 272.1252. (3h). White solid (2.0 g, 90%). M.p. 79C81 C. 1H-NMR (CDCl3) 9.84 (brs, 1H, NH), 7.30= 7.7 Hz, 2H, ArH), 4.68 (brs, 1 H, C=C-H), 4.17 (q, = 7.1 Hz, 2 H, OCH2), 3.13= 7.1 Hz, 3H, CH3), 1.22 (d, = 6.9 Hz, 6H, 2CH3), 1.12 (d, = 6.8 Hz, 6H, 2CH3). HRMS (ESI) calcd for C18H27NO2Na [M+Na]+: 312.1934, found: 312.1933. (3i). White solid (1.45 g, 94%). M.p. 74C75 oC. 1H-NMR (CDCl3) 8.76 (d, = 9.4 Hz, 1H, NH), 4.53 (s, 1H, C=C-H), 4.09 (q, = 7.1 Hz, 2H, OCH2), 3.79= 7.1 Hz, 3H, CH3). HRMS (ESI) calcd for C9H17NO4Na [M+Na]+: 226.1050, found: 226.1044. (3j). 937174-76-0 White solid (1.96 g, 99%). M.p. 59~60 C. 1H-NMR (CDCl3) 8.89 (brs, 1H, NH), 7.37= 6.4 Hz, 2H, NCH2), 1.87 (s, 3H, CH3), 1.47 (s, 9H, 3CH3). HRMS (ESI) calcd for C15H21NO2Na [M+Na]+: 270.1465, found: 270.1461. (3k). Light crystals (1.65 g, 94%). M.p. 51C53 C. 1H-NMR (CDCl3) 8.59 (brs, 1H, NH), 4.43 (s, 1H, C=C-H), 3.74 (t, = 5.3 Hz, 2H, CH2), 3.37 (q, = 5.6 Hz, 2H, CH2), 1.92 (s, 3H, CH3), 1.46(s, 9H, 3CH3). HRMS (ESI) calcd for C10H19NO3 Na [M+Na]+: 224.1257, found: 224.1252. (3l). White colored crystals (1.96 g, 93%). 1H-NMR (CDCl3) 10.10 (brs, 1H, NH), 7.01 (d, 8.8 Hz, 2H, ArH), 6.83 (d, 8.8 Hz, 2H, ArH), 4.58 (s, 1H, C=C-H), 4.01 (q, 7.0 Hz, 2H, OCH2), 1.86 (s, 3H, CH3), 1.50 (s, 9H, 3CH3), 1.41 (t, 7.0 Hz, 3H, CH3). HRMS (ESI): calcd for C16H23NO3Na [M+Na]+: 300.1576; found: 300.1567. (3m). White colored crystals (1.63 g, 92%). 1H-NMR (CDCl3) 10.34 (brs, 1H, NH), 7.30 (t, 7.8 Hz, 2H, ArH), 7.13 (t, 7.4 Hz, 1H, ArH), 7.08 (d, 7.6 Hz, 2H, ArH), 4.62 (s, 1H, C=C-H), 1.50 (s, 9H, 3CH3). HRMS (ESI): calcd for C14H19NO2Na [M+Na]+: 256.1313, found: 256.1307. (3n). White colored crystals (1.21 g, 90%). M.p. 49C51 C. 1H-NMR (CDCl3) 12.47 (brs, 1H,.