作者:Keishi Ishida、Yuji Okita、Hisashi Matsuda、Tatsufumi Okino、Masahiro Murakami
DOI:10.1016/s0040-4020(99)00621-3
日期:1999.9
inhibitors, related to aeruginosins 298-A (5), 98-A (1) and 98-B (2), were isolated from the cyanobacterium Microcystis aeruginosa. Aeruginosins 98-C (3) and 101 (4) differed from 1 in the Hpla unit. Aeruginosin 298-B (6) lacked the argininol unit in 5. Aeruginosins 89-A (7) and 89-B (8) were observed as the tautomers in HPLC because of the presence of the argininal units. Structures 3, 4 and 6–8 were determined
从铜绿微囊藻中分离出五种新的蛋白酶抑制剂,分别与铜绿菌素298-A(5),98-A(1)和98-B(2)有关。铜绿菌素98-C(3)和101(4)在Hpla单元中不同于1。Aeruginosin 298-B(6)在5中缺少精氨酸单元。由于存在精氨酸单元,因此在HPLC中观察到铜绿素酶89-A(7)和89-B(8)为互变异构体。结构3、4和6-8根据光谱数据和降解产物的色谱分析确定。1–8的绝对立体化学是通过光谱和化学研究相结合得出的。