Cyclothialidine Analogs, Novel DNA Gyrase Inhibitors.
作者:KAYOKO YAMAJI、MIYAKO MASUBUCHI、FUMIKO KAWAHARA、YUMIKO NAKAMURA、AYA NISHIO、SHOKO MATSUKUMA、MIKAKO FUJIMORI、NAOKI NAKADA、JUNKO WATANABE、TSUTOMU KAMIYAMA
DOI:10.7164/antibiotics.50.402
日期:——
0660, NR 0661 and NR 0662). Their structures have been elucidated based on the amino acid analysis of the hydrolysates, NMR and HRFAB-MS experiments and shown to be cyclothialidine analogs. The absolute stereochemistry has been determined by the chiral HPLC analysis of the hydrolysates. Cyclothialidines B, D and E are novel and potent inhibitors of DNA gyrase.
从四个链霉菌菌株(NR 0659,NR 0660,NR 0661和NR 0662)中分离出DNA促旋酶抑制剂,环噻啶B,C,D和E。根据水解产物的氨基酸分析,NMR和HRFAB-MS实验阐明了它们的结构,证明是环噻啶类似物。绝对立体化学已经通过水解产物的手性HPLC分析确定。环乙啶B,D和E是新型的DNA促旋酶抑制剂。