p. 765 - 776
(2007/10/03)p. 2513 - 2516
(2007/10/02)(E)-4-Benzyloxycarbonylamino-3-pyrrolidin-1-yl-but-2-enoic acid ethyl ester
chloroformic acid ethyl ester
5-benzyloxycarbonylaminomethyl-3-methylisoxazole-4-carboxylic acid
ethyl 5-benzyloxycarbonylaminomethyl-3-methylisoxazole-4-carboxylate
N-Benzyloxycarbonylglycine imidazolide