Patent · US Expired

Process for the manufacture of 4-acylamino-3-hydroxybutyric acid esters

US5064761A · kind A · utility

48Cited by

9References

7Claims

0Family size

Assignee

Ciba-Geigy · US

Inventors

Peter Schneider · Königstein, DE
Gerardo Ramos · Arlesheim, CH
Jacques Bersier · Riehen, CH

Key dates

Filing date	Mar 9, 1990
Grant date	Nov 12, 1991
Priority date	—
Expiry date	Mar 9, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S435/942
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the manufacture of a compound of the formula IIIa ##STR1## wherein R.sup.2 is lower alkyl and R.sup.3 is lower alkanoyl or arylcarbonyl comprising reducing a compound of formula II ##STR2## wherein R.sup.2 is lower alkyl and R.sup.3 is lower alkanoyl or arylcarbonyl or a salt thereof with Saccharomyces cerevisiae.

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