Patent · US Expired

3-L-(5-thioxo-L-prolyl)thiazolidine-4-carboxylic acid and derivatives therefrom, processes for the preparation thereof and pharmaceutical compositions containing them

US5212160A · kind A · utility

0Cited by

2References

6Claims

0Family size

Assignee

Poli Industria Chimica SpA · IT

Inventors

Stefano Poli · Quinto de' Stampi, IT
Lucio Del Corona · Milano, IT
Germano Coppi · Romano Banco, IT

Key dates

Filing date	Jan 16, 1991
Grant date	May 18, 1993
Priority date	—
Expiry date	Jan 16, 2011

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K38/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

3-L-(5-thioxo-L-prolyl)thiazolidine-4-carboxylic acid and the derivatives thereof have valuable immunostimulating, antioxidant, antiradical and antiageing properties. They are prepared by thionating the corresponding 3-L-pyroglutamyl-L-thiazolidine-4-carboxylic acid derivatives or by condensing 5-thioxo-L-proline with the corresponding L-thiazolidine-4-carboxylic acid derivatives.

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