Phenyl thiazolyl urea and carbamate derivatives as new inhibitors of bacterial cell-wall biosynthesis
摘要:
Over 50 phenyl thiazolyl urea and carbamate derivatives were synthesized for evaluation as new inhibitors of bacterial cell-wall biosynthesis. Many of them demonstrated good activity against MurA and MurB and gram-positive bacteria including MRSA, VRE and PRSP. 3,4-Difluorophenyl 5-cyanothiazolylurea (3p) with clog P of 2.64 demonstrated antibacterial activity against both gram-positive and gram-negative bacteria. (C) 2003 Elsevier Ltd. All rights reserved.
Azoles。第10部分。噻唑并[4',5',4,5]噻吩并[3,2- d ]嘧啶,一种新的杂环系统
摘要:
通过使4-氯噻唑-5-甲醛或4-氯噻唑-5-腈与2-巯基乙酸乙酯或2-巯基乙酰胺反应来制备噻吩并[2,3- d ]噻唑。将获得的6-氨基噻吩并[2,3- d ]噻唑-5-羧酰胺转化为相应的噻唑并[4',5'; 4,5]噻吩并[3,2 - d ]嘧啶-5(6 H)-一种通过在乙酸酐中用原甲酸三乙酯处理。用磷酰氯得到5-氯衍生物,当其与各种胺反应时,该氯原子被氯原子取代。5-氯噻唑并[4',5'; 4,5]噻吩并[3,2- d ]-嘧啶的还原脱氯反应得到母体杂环。