4-氧代-1,3-哌啶二羧酸 1-苄酯 3-甲酯; 4-氧代-1,3-哌啶二羧酸 3-甲酯 1-苄酯; N-CBZ-3-甲氧羰基-4-哌啶酮; 1-CBZ-3-甲酸甲酯-4-哌啶酮/4-氧代-1,3-哌啶二羧酸 3-甲酯 1-苄酯;

4-Oxo-1,3-piperidinedicarboxylic acid 1-benzyl ester 3-methyl ester; 4-Oxo-1,3-piperidinedicarboxylic acid 3-methyl 1-(phenylmethyl) ester; Methyl 1-benzyloxycarbonyl-4-oxo-3-piperidinecarboxylate; 1-O-benzyl 3-O-methyl 4-oxopiperidine-1,3-dicarboxylate; 1-Benzyl 3-methyl 4-oxopiperidine-1,3-dicarboxylate;