期刊
JOURNAL OF NATURAL PRODUCTS
卷 71, 期 7, 页码 1218-1221出版社
AMER CHEMICAL SOC
DOI: 10.1021/np800163u
关键词
-
资金
- NCRR NIH HHS [P20 RR021929, C06 RR014503, C06 RR-14503-01] Funding Source: Medline
- NIAID NIH HHS [5R01AI1036596, R01 AI036596] Funding Source: Medline
- PHS HHS [U50/CCU418839] Funding Source: Medline
The manzamines represent a class of marine natural products that show considerable promise in the control of malaria but generate GI distress in rodents when administered orally in high doses. In an effort to generate manzamine prodrugs with improved antimalarial activity and reduced GI toxicity, we prepared acetylated 8-hydroxymanzamine A analogues including 8-acetoxymanzamine A (3) and 8,12-diacetoxymanzamine A (4), and 8-methoxymanzamine A (5) beginning with 8-hydroxymanzamine A (2). The semisynthetic analogues were assayed for antimalarial and antimicrobial activities, cytotoxicity, and biological and chemical stability. Due to gradual hydrolysis of the ester group, application of monoacetate 3 as an antimalarial prodrug was investigated. The in vitro and in vivo bioassays show that acetylated analogues exhibit significant antimalarial activity (IC(50)(3) 9.6-30 ng/mL), which are comparable to the parent molecule; however the monoaceate 3 was shown to actually produce higher toxicity at 30 mg/kg when administered orally.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据