会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • 9,10-Seco-steroids
    • 9,10-类固醇
    • US4064173A
    • 1977-12-20
    • US651763
    • 1976-01-23
    • Jean-Marie CassalAndor FurstWerner Meier
    • Jean-Marie CassalAndor FurstWerner Meier
    • C07C401/00C07C49/27
    • C07C205/45C07C2102/24
    • A process for the preparation of 9,10-seco-steroids of the formula ##STR1## WHEREIN R.sup.1 and R.sup.2 independently are hydrogen, amino, OR.sup.5, OCOR.sup.6 or NHCOR.sup.5 wherein R.sup.5 is hydrogen or lower alkyl and R.sup.6 is lower alkyl or phenyl; R.sup.3 is lower alkyl; R.sup.4 is oxo, ##STR2## wherein R.sup.13 is lower alkyl, lower alkoxy -- lower alkylene, tetrahydropyranyl or tetrahydrofuryl, R.sup.14 is lower alkyl or aryl and R.sup.15 and R.sup.16 are lower alkyl or taken together form lower alkylene or arylene, and n is 1 or 2 is disclosed. The 9,10-seco-steroids of this invention are useful intermediates for the preparation of steroids.
    • 其中R 1和R 2独立地为氢,氨基,OR 5,OCOR 6或NHCOR 5,其中R 5为氢或低级烷基且R 6为低级烷基或苯基; R3是低级烷基; R4是氧代,其中R13是低级烷基,低级烷氧基 - 低级亚烷基,四氢吡喃基或四氢呋喃基,R14是低级烷基或芳基,R15和R16是低级烷基或一起形成低级亚烷基或亚芳基,n是1或 2。 本发明的9,10-秒类固醇是制备类固醇的有用中间体。