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喜树碱(CPT)为珙桐科植物喜树中提取分离的生物碱。而羟喜树碱(HCPT)是将喜树碱基本环A环中10位的-H由-OH取代合成。羟喜树碱是由喜树碱改造结构而得到
Camptothecin (CPT) is an alkaloid extracted from Camptotheca acuminata plant. The hydroxy camptothecin (HCPT) is camptothecin basic ring A ring 10 -H -OH replaced by the synthesis. Hydroxycamptothecin is derived from camptothecin to alter the structure