Process for the manufacture of 4-acylamino-3-hydroxybutyric acid esters
AssigneeCiba-Geigy Corporation
InventorsPeter Schneider, Gerardo Ramos, Jacques Bersier
Life of this patent
Estimating the term…
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.
Claims7
A process for the manufacture of a compound of the formula IIIa ##STR12## wherein R.sup.2 is lower alkyl and R.sup.3 is lower alkanoyl or arylcarbonyl comprising reducing a compound of formula II ##STR13## wherein R.sup.2 is lower alkyl and R.sup.3 is lower alkanoyl or arylcarbonyl or a salt thereof by cutting with Saccharomyces cerevisiae under conditions affective for the production of a compound of formula IIIa, and isolation thereof.
Dependencies are inferred from the claim text.