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    • 7. 发明专利
    • DE1300561B
    • 1969-08-07
    • DEF0047055
    • 1965-09-01
    • HOECHST AG
    • STACHEULRICH DRHAEDEWERNER DRFRITSCHRADSCHEITKURT DIPL-CHEM DR
    • A61K31/585C07J19/00C07J75/00
    • 1,161,324. Unsaturated lactones of the steroid series. FARBWERKE HOECHST A.G. 1 Sept., 1966 [1 Sept., 1965], No. 39129/66. Heading C2U. The invention comprises (1) a process for the preparation of steroids containing in the 17#- position a group of the formula (hereinafter named as a # α,# -#-butenolide ring) which comprises reacting a corresponding 20- keto - 21 - (hydroxy or acyloxy) pregnane compound with a substituted-methyl dialkyl phosphonate (the substituent being the group -CO 2 R 6 in which R 6 is a saturated or unsaturated aliphatic, cycloaliphatic or araliphatic hydrocarbon radical) in the presence of an anhydrous base; and (2) the novel steroids # α,# - # - (# 4 - androsten - 3 - on - 17 - yl)- butenolide, # α,# - # - (# 4 - androsten - 15α - ol- 3 - on - 17 - yl) - butenolide, # α,# - # - (# 4 ' 14 - androstadien - 3 - on - 17 - yl) - butenolide, and # α,# - # - (14α,15α - oxido - # 4 - androsten - 3- on-17-yl)-butenolide. 14α,15α - Oxido - # 4 - pregnen - 21 - ol - 3,20- dione is prepared by epoxidation of the corresponding # 14 compound. The steroid butenolides described above have cardiotonic activity and may be made up into pharmaceutical compositions with suitable carriers and/or stabilizers.