8-benzyl-3,8-diaza-bicyclo[4.2.0]octane-3-carboxylic acid tert-butyl ester

二碳酸二叔丁酯

N-Boc-3-氧代哌啶-4-甲酸乙酯

1-苄基-3-氧杂-4-哌啶甲酸乙酯

5-benzylamino-1,2,3,6-tetrahydropyridine-1,4-dicarboxylic acid 1-tert-butyl ester 4-ethyl ester