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- W2078295532 abstract "3β, 16α, 19-Trihydroxy-5-androsten-17-one [ 6 ]and 16α, 19-dihydroxy-4-androstene-3, 17-dione [ 14 ]were synthesized from the 5α-bromo-6β, 19-epoxy-17-ketone derivative 1, using the bromination at C-16α of the 17-ketone 1 and the controlled alkaline hydrolysis of the 16α-bromo-17-ketones 2 and 11 as key reactions. Zinc dust reductive cleavage of the 6β, 19-epoxy-16α-hydroxy-17-ketones 4 and 12 , produced by controlled hydrolysis, gave the corresponding 19-alcohol derivatives 6 and 14 , which were rearranged to the 17β-hydroxy-16-ketones 7 and 15 when treated with sodium hydroxide. The 3β, 16α, 17β, 19-tetrol 8 was obtained from the 16α-ketol 6 by reaction with sodium borohydride." @default.
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- W2078295532 date "1987-04-01" @default.
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- W2078295532 title "Synthesis of 16α,19-dihydroxy-4-androstene-3,17-dione and 3β,16α,19-trihydroxy-5-androsten-17-one and their 17β-hydroxy-16-keto isomers" @default.
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- W2078295532 doi "https://doi.org/10.1016/0039-128x(87)90002-x" @default.
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