Patent · US Expired

Preparation of 4-phenyl-1,3-benzodiazepins

US4461728A · kind A · utility

1Cited by
2References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 12, 1982
Grant dateJul 24, 1984
Priority date
Expiry dateNov 12, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D243/04
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

The invention relates to compounds of the formula ##STR1## where Y is --OH; halogen; ##STR2## where R.sub.1 is a straight chain or branched chain alkyl group having 1 to 5 carbon atoms, or aryl; and R.sub.2 is --C(CH.sub.3).sub.3 or --O--C(CH.sub.3).sub.3. Processes for preparing the compounds are provided. The compounds are useful as intermediates in the preparation of 4-phenyl-1,3-benzodiazepins, which exhibit activity as antidepressants, analgetics and anticonvulsants.

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