Patent · US Expired

Gona-4,9(10)-dienes and process of producing the same

US4167517A · kind A · utility

2Cited by
2References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 18, 1977
Grant dateSep 11, 1979
Priority date
Expiry dateJul 18, 1997

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07J41/0094
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

New gona-4,9(10)-dienes of formula I ##STR1## where R is alkyl of 1 to 3 carbon atoms and X is Cl, Br, F, N.sub.3, SCN, CN, OH, OR'(R'=alkyl), NH.sub.2, a substituted amino group or a heterocyclic compound including nitrogen in the ring. The compounds have valuable biological properties, especially hormonal and antihormonal effects, and can be used to advantage in pharmaceutical preparations for the treatment of endocrinopathies and for reproduction control in human beings and livestock. The invention also embraces a process for making the compounds by converting 3-methyoxy-13.beta.-R-gona-2,5(10)-diene-17.beta.-spiro-1',2'-o xiranes first to 17.beta.-hydroxy-17.alpha.-CH.sub.2 X-13.beta.-R-gon-5(10)-en-3-one, then to the 17.beta.-hydroxy-17.alpha.-CH.sub.2 X-13.beta.-R-gona-4,9(10)-diene-3-ones of formula I.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.