Patent · US Expired

1,5-Disubstituted-2-pyrrolidinones, -3-pyrrolin-2-ones, and -4-pyrrolin-2-ones

US3975399A · kind A · utility

36Cited by

2References

16Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Robert J. DeFranco · Wilmington, US
Richard M. Scribner · Wilmington, US

Key dates

Filing date	Aug 6, 1974
Grant date	Aug 17, 1976
Priority date	—
Expiry date	Aug 6, 1994

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D207/28
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Certain 1,5-disubstituted 2-pyrrolidinones, and their ring unsaturated analogs, resemble natural prostaglandins. The compounds are easier to prepare than the prostaglandins since they have at least one fewer center of asymmetry and accordingly fewer isomers are produced. Exemplary is 7-[2-oxo-5-(3-hydroxy-1-oct-1-enyl)-1-pyrrolidinyl]heptanoic acid of the formula: ##SPC1##

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