C - Chemistry – Metallurgy – 12 – P
Patent
C - Chemistry, Metallurgy
12
P
C12P 17/00 (2006.01) C07D 333/24 (2006.01) C07D 333/26 (2006.01) C07D 333/28 (2006.01) C07D 333/42 (2006.01) C07D 409/06 (2006.01) C07K 1/00 (2006.01) C07K 7/18 (2006.01) C12P 13/04 (2006.01) C12P 17/16 (2006.01) C12P 21/00 (2006.01)
Patent
CA 2101654
Abstract 1 Process for the biotechnological preparation of L-thi- enylalanines in enantiomerically pure form from 2- hydroxy-3-thienylacrylic acids, and their use L-Thienylalanines are prepared via the hydantoin or the azlactone route. The starting substances used for the biotransformation are 2-hydroxy-3-thienylacrylic acids. The innovative step consists in the transamination of the enol form of the 2-hydroxy-3-thienylacrylic acids to give L-thienylalanines with the aid of biotransformation. The transaminiation is carried out in the presence of L-aspartic acid or L-glutamic acid as amino donor.
Grabley Susanne
Hammann Peter
Kretzschmar Gerhard
Lerch Ulrich
Meiwes Johannes
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Hoechst Aktiengesellschaft
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