| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of very high volume efficiency for producing a racemate, azetidine-2-carboxylic acid. SOLUTION: A cyclization process from 4-amino-2-halobutyric acid to azetidine-2-carboxylic acid by which 20 g or more of the 4-amino-2-halobutyric acid are cyclized per 1 liter of the reaction mixture is provided. COPYRIGHT: (C)2009,JPO&INPIT
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