| 摘要 |
1484655 Preparing steroids electrolytically SIPHAR SA 29 July 1975 [8 Aug 1974] 31789/75 Heading C7B [Also in Division C2] Steroids of Formula: wherein R 1 and R 2 are each H, OH or aliphatic carboxylic acyloxy, R 3 is H or OH, R 4 is OH, aliphatic carboxylic acyloxy, or a sugar moiety comprised of 1-3 hexopyranoside radicals the hydroxy groups of which are free, acetalized, methyl-etherified, or esterified with an aliphatic carboxylic acid, and R 7 is one of the groups are prepared from the corresponding compounds wherein R 7 is a 3-furyl group by electrolytic oxidation optionally in an alcoholic solution and possibly followed by mild acidolysis. |
