Method for producing aspartame derivative, method for...

Details Method for producing aspartame derivative, method for... Method for producing aspartame derivative, method for...

2005-05-31

2005-05-31

Zucker, Paul A. (Department: 1621)

Food or edible material: processes, compositions, and products

Products per se, or processes of preparing or treating...

Noncarbohydrate sweetener or composition containing same

C560S040000

Reexamination Certificate

active

06899912

ABSTRACT:
N-[N-[3-(3-methoxy-4-hydroxyphenyl)propyl]-L-α-aspartyl]-L-phenylalanine 1-methyl ester is prepared by a process comprising:subjecting Aspartame and 3-(3-methoxy-4-hydroxyphenyl)propionaldehyde or derivatives thereof to reductive alkylation in a solvent to produce N-[N-[3-(3-methoxy-4-hydroxyphenyl)propyl]-L-α-aspartyl]-L-phenylalanine 1-methyl ester; andcrystallizing said compound.

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patent: 6077962 (2000-06-01), Prakash et al.
patent: WO 99/52937 (1999-10-01), None
patent: WO 00/00508 (2000-01-01), None
patent: WO 00/17230 (2000-03-01), None
Solomons, Organic Chemistry 1992, John Wiley & Sons, Inc. New York, pp. 305-311.*
S. Nishimura,Handbook of Heterogeneous Catalytic Hydrogenation for Organic Synthesis, John Wiley & Sons, NY, pp. 178-185, 2001.
T. Fukuda,Nippon Kagaku Zasshi, vol. 83, pp. 1126-1129, 1962 (with English abstract; Chem. Abstract 59:11310e (1963)).

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