In this study, a total of 161 endophytic fungal isolates from Camptotheca acuminata were obtained and classified to 16 taxa according to morphological and molecular analysis. These taxa were composed of 2 frequent genera (Botryosphaeria and Fusarium) and 14 infrequent groups such as Xylaria,
10-hydroxycamptothecin and 9-methoxycamptothecin, naturally occurring camptothecin derivatives, are reportedly present in Camptotheca acuminata with a powerful cytotoxic effect and strong antitumor activity. In this paper, we studied the derivatization reaction of camptothecin catalyzed by
Camptothecin (CPT), 9-methoxycamptothecin (9-MeO-CPT), and 10-hydroxycamptothecin (10-OH-CPT) are potent antineoplastic metabolites. We analyzed these metabolites in Camptotheca acuminata sampled from Germany and China, using LC-MS/MS and LC-ESI-HRMS/MS, coupled with chemometrics. Multivariate
The pentacyclic quinoline alkaloid camptothecin (1) is a potent antineoplastic agent. Two of its analogues, 9-methoxycamptothecin (2) and 10-hydroxycamptothecin (3), exhibit similar potency but do not have the potential therapeutic drawbacks produced by unmodified 1. We have established methodology
Two key biosynthetic intermediates (pumiloside and strictosamide) of camptothecin were isolated. A high performance liquid chromatography-ultraviolet (HPLC-UV) method was developed to determine four main alkaloid compounds (pumiloside, strictosamide, camptothecin and 10-hydroxycamptothecin) and
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