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A New C-23 Steroid from the Venom of Bufo bufo gargarizans

机译:中华蟾蜍毒液中的新型C-23类固醇

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摘要

A new C-23 steroid, (3 beta,5 beta,14 beta)-methyl (3-hydroxy-14,15-epoxy-20-oxo-21-norcholan-24-oate) (1), together with four known ones (2-5), were isolated from the venom of Bufo bufo gargarizans. Their structures were elucidated on the basis of extensive spectroscopic analysis. The cytotoxicity of these compounds was also evaluated against human hepatocarcinoma HepG2 cells. Compound 3 showed significant cytotoxicity with an 1050 value of 16.8 +/- 0.7 mu M.
机译:一种新的C-23类固醇,(3 beta,5 beta,14 beta)-甲基(3-羟基-14,15-环氧20-氧代-21-诺胆聚糖24-酸酯)(1),以及四个已知的那些(2-5)是从中华大蟾蜍的毒液中分离出来的。在广泛的光谱分析的基础上阐明了它们的结构。还评估了这些化合物对人肝癌HepG2细胞的细胞毒性。化合物3显示出明显的细胞毒性,1050值为16.8 +/- 0.7μM.

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