通过在Ac 2 O介质中回流环化双硫氨基甲唑酮(3a,3b,3c,3d,3e,3e,3f,3g),合成了二噻唑啉(4a,4b,4c,4d,4e,4f,4g)。中间体是从二苯甲醛(2a,2b,2c,2d,2e,2f,2g)在干燥的EtOH / HCl存在下通过回流与thiosemicarbazide一起使用。后者是在碱性条件下,由3-羟基苯甲醛与合适的二溴衍生物进行O-烷基化制得的,收率很高。通过严格分析其光谱参数(UV-vis,IR,1 H NMR,13 C NMR和ESI-MS)来确定所制备化合物的结构。使用连续管稀释法筛选了新制备的化合物对七种细菌和五种真菌菌株的抗菌活性。
通过在Ac 2 O介质中回流环化双硫氨基甲唑酮(3a,3b,3c,3d,3e,3e,3f,3g),合成了二噻唑啉(4a,4b,4c,4d,4e,4f,4g)。中间体是从二苯甲醛(2a,2b,2c,2d,2e,2f,2g)在干燥的EtOH / HCl存在下通过回流与thiosemicarbazide一起使用。后者是在碱性条件下,由3-羟基苯甲醛与合适的二溴衍生物进行O-烷基化制得的,收率很高。通过严格分析其光谱参数(UV-vis,IR,1 H NMR,13 C NMR和ESI-MS)来确定所制备化合物的结构。使用连续管稀释法筛选了新制备的化合物对七种细菌和五种真菌菌株的抗菌活性。
A series of conformationally flexible and restricted dimers of monastrol as well as related dihydropyrimidones have been synthesized by employing one-pot Biginelli multicomponent reaction. These dimers have been evaluated for cytotoxic potency against selected human cancer cell lines and some of the compounds have exhibited more cytotoxic potency than the parent monastrol. Further. the DNA binding ability by thermal denaturation studies and antimicrobial activities of these compounds are also discussed. (C) 2011 Elsevier Masson SAS. All rights reserved.
Synthesis and Antimicrobial Evaluations of 1,3,4-Thiadiazoline-based Bisheterocyclics
作者:Mohamad Yusuf、Manpreet Kaur、Payal Jain
DOI:10.1002/jhet.2158
日期:2015.5
structures of prepared compounds were determined from rigorous analysis of their spectral parameters (UV–vis, IR, 1H NMR, 13C NMR and ESI‐MS). The newly prepared compounds were screened for their antimicrobial activity against seven bacterial and five fungi strains using serial tube dilution method.
通过在Ac 2 O介质中回流环化双硫氨基甲唑酮(3a,3b,3c,3d,3e,3e,3f,3g),合成了二噻唑啉(4a,4b,4c,4d,4e,4f,4g)。中间体是从二苯甲醛(2a,2b,2c,2d,2e,2f,2g)在干燥的EtOH / HCl存在下通过回流与thiosemicarbazide一起使用。后者是在碱性条件下,由3-羟基苯甲醛与合适的二溴衍生物进行O-烷基化制得的,收率很高。通过严格分析其光谱参数(UV-vis,IR,1 H NMR,13 C NMR和ESI-MS)来确定所制备化合物的结构。使用连续管稀释法筛选了新制备的化合物对七种细菌和五种真菌菌株的抗菌活性。