financially supported by the National Natural Science Foundation of China(21875252);Self-created Area Project of Major Science Technology Innovation Platform of Xiamen(3502ZCQ20171002)。
The crystal of(24 R)-3β,5α-dihydroxy-24-ethyl-5α-cholestan-6-one(1) was isolated from the leaves of P.nagi planted in Fujian for the first time with the same skeleton as 26,27-dinorcholest-5-en-3-β-ol(2) andβ-sit...
supported by Young Science Fund of Key Laboratory of Advanced Textile Materials and Manufacturing Technology (Zhejiang Sci-Tech. University),Ministry of Education
The title compound VII, 2-fluoro-4-methyl-3-oxo-4-aza-5α-androst-1-ene-17β-carboxylic acid methyl ester (C21H30FNO3, Mr = 363.46), was prepared through a seven-step reaction from pregnenolone, and characterized by...