Studies on Steroidal Compounds. X. Preparation of 17β-Chloro Steroids.
作者:Hiromu Mori、Kiyoshi Tsuneda
DOI:10.1248/cpb.11.1413
日期:——
17β-Chloro-5α-androstan-3β-ol (VII) and 17β-chloro-5α-androstan-3-one (VI) were prepared. 3β-Hydroxy-5α-androstan-17-one hydrazone (II) was treated with N-chlorosuccinimide in pyridine to give 17-chloro-5α-androst-16-en-3β-ol (IVa), which on hydrogenation with 5% palladium charcoal afforded VII. The chromium trioxide oxidation of VII gave VI. Some observations concerning 17-bromo and 17-iodo compounds (IVb and III) were also written.
Synthesis and bioevaluation of novel steroidal isatin conjugates derived from epiandrosterone/androsterone
作者:Shaoyong Ke、Zhigang Zhang、Manli Liu、Wei Fang、Daye Huang、Zhongyi Wan、Ronghua Zhou、Kaimei Wang、Liqiao Shi
DOI:10.1080/14756366.2019.1659790
日期:2019.1.1
which have been demonstrated to exhibit broad biological functions, and have also attracted increasing interest from bioorganic and pharmaceutical researches. In order to develop novel chemical entities as potential cytotoxic agents, a series of steroidal isatin conjugations derived from epiandrosterone and androsterone were efficiently prepared and characterized, and all these obtained compounds were
novel cyclometalated ruthenium(II) and iridium(III) complexes with a steroidal backbone based on androsterone were synthesized and characterized by NMR spectroscopy and X-ray crystallography. Their cytotoxic properties in RT112 and RT112 cP (cisplatin-resistant) cell lines as well as in MCF7 and somatic fibroblasts were compared with those of the corresponding nonsteroidal complexes and the noncyclometalated
Microbiological Hydroxylation of Some Epoxy Steroids by the Fungus <i>Mucor Plumbeus</i>
作者:Khalid O. Alfooty
DOI:10.3184/030823408x320665
日期:2008.6
preparation of epoxy steroids derived from testosterone, dehydroisoandrosterone and epiandrosterone using m-chloroperbenzoic acid and their biotransformation by the fungus Mucorplumbeus is described. The results reveal an effect of the epoxide on the biotransformation.