Patent · US Expired

Method of optically resolving (.+-.)-1-(3-pyridylcarbonyl)-5-methyl-2-pyrazoline

US5075449A · kind A · utility

0Cited by
1References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 16, 1990
Grant dateDec 24, 1991
Priority date
Expiry dateFeb 16, 2010

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D401/06
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

The present invention relates to a novel (-)-2-pyrazoline compound and therapeutic agents containing the same as an effective ingredient; furthermore, it relates to a method for optically resolving 1-(3-pyridylcarbonyl)-5-methyl-2-pyrazoline.

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