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Enantiopure L-azetidine-2-carboxylic acid, the (3R)-phenyl, (3R)-naphthyl a
nd (3S)-isopropyl analogs were prepared based on a zinc-mediated asymmetric
addition of allylic halides to the camphor sultam derivative of glyoxylic
acid O-benzyl oxime. (C) 1999 Elsevier Science Ltd. All rights reserved.