Patent · US Expired

Method of preparing 16.alpha., 17.alpha.-dialkylated steroids

US6040468A · kind A · utility

2Cited by
7References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 5, 1998
Grant dateMar 21, 2000
Priority date
Expiry dateNov 5, 2018

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07J71/00
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

16.alpha., 17.alpha.-dialkylated steroids are prepared by reacting a 16.alpha.-alkyl-17(20)-enyl-20-silyl ether with an alkylating agent and an enol silyl ether cleaving agent in a suitable solvent.

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