Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1989-01-03
1991-08-20
Gray, Bruce
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C07C22400
Patent
active
050416073
ABSTRACT:
A crystalline L-alpha-aspartyl-L-phenyl-alanine methyl ester product is disclosed. The product is obtained by crystallizing the ester from an aqueous solution, by cooling. The initial concentration of ester in the aqueous solution used provides at least 10 grams of precipitated solid phase per liter of solution. The solution is cooled through conductive heat transfer without effecting forced flow to form a sherbet-like pseudo solid phase.
Kawasaki Haruo
Kishimoto Shin-ichi
Nakamura Masao
Naruse Masayoshi
Oura Harutoshi
Ajinomoto Co. Inc.
Gray Bruce
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