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(2007/12/18)(-)-(1S,4R)-4-(acetylamino)-2-cyclopentene-1-carboxylic acid
ester methylique de l'acide (acetamido-cis-4)-cyclopentene-2-carboxylique
(-)-(1S, 4R)-4-amino-2-cyclopentene-1-carboxylic acid
(1S,4R)-4-(benzyloxycarbonylamino)-2-cyclopentene-1-carboxylic acid methyl ester