Process for preparing optically active tryptophans

Details Process for preparing optically active tryptophans Process for preparing optically active tryptophans

1982-06-25

1985-02-05

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20920

Patent

active

044979576

ABSTRACT:
Biochemical optical resolution of DL-tryptophans in which DL-tryptophan amides are interacted with the culture products, or their treated products, of a microorganism capable of producing amidase is described. L-Tryptophan amides in racemic DL-tryptophan amides are asymmetrically hydrolyzed to form optically active L-tryptophans at a high yield and almost all D-tryptophan amides remain without being subjected to hydrolysis. The resultant D-tryptophan amides are readily hydrolyzed, after separating L-tryptophans, to form optically active D-tryptophans at a high yield.

REFERENCES:
March Index, 9th Ed, (1976), Item 8815, p. 1171.
Chibata et al, Bull Ag. Chem Soc. Japan, vol. 21, No. 1, pp. 62-66 (1957).

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