S. Virgin Islands. The structures of the new compounds were determined by extensive interpretation of 2D NMR data and by chemical methods. Microsporins A and B are potent inhibitors of histone deacetylase and demonstrate cytotoxic activity against human colon adenocarcinoma (HCT-116), as well as against the National Cancer Institute 60 cancer cell panel. The total synthesis of microsporin A on solid-phase
从海生真菌Microsporum cf.的培养物
提取物中分离出两个新的环状肽,微孢子菌素A和B(7和8)。从苔藓虫Bugula sp。样品中获得的
石膏。收集在美属维尔京群岛。通过广泛解释2D NMR数据和
化学方法来确定新化合物的结构。微孢菌素A和B是组蛋白脱乙酰基酶的有效
抑制剂,对人结肠腺癌(HCT-116)以及对美国国家癌症研究所60癌细胞小组均显示出细胞毒活性。还报道了在固相上微孢菌素A的全合成。