摘要
以中国南海海域大量生长的总合草苔虫为原料,将化学分离和活性追踪相结合,经溶媒提取和多种层析方法(Sephadex LH-20,ODS,HPLC等)分离,得到3个活性单体。采用高分辨核磁共振仪(600MHz)测定了它们的DQF-COSY、HMQC、TOCSY、NOESY、ROESY等二维相关谱。利用波谱解析和化学方法,分别将其鉴定为:bryostatin 4、bryostatin 5、bryostatin 6,并对其~1HNMR和^(13)CNMR数据做了订正。所有化合物均系首次从中国产总合草苔虫中获得,并在体外抗肿瘤活性筛选中都表现出显著的抗肿瘤活性。
Three active compounds were isolated from the marine bryozoan Bugula neritina living in the South China Sea by bioassay-guiding isolation method with a combination of extraction with suitable solvent and multiple column chromatography(Sephadex LH-20, ODS and preparative HPLC). Their structures were assigned as known bryostatin 4, bryostatin 5 and bryostatin 6 by intensive analysis of the data of high resolution 2DNMR(600 MHz,DQF-COSY,TOCSY,HMQC and ROESY). All these compounds were obtained from this bryozoan in the South China Sea for the first time and showed significant antineoplastic activities in vitro.
出处
《中国海洋药物》
CAS
CSCD
1998年第3期1-6,共6页
Chinese Journal of Marine Drugs
基金
国家自然科学基金(编号 29672050)
