(3S,9aS)-3-benzyl-2-tosylhexahydro-2H-pyrido[1,2-a]pyrazin-1(6H)-one

(3S,6S)-3-Benzyl-1,4-diaza-5-methoxybicyclo[4.4.0]dec-4-ene

L-苯丙氨酸甲酯盐酸盐

1-N-Cbz-2-哌啶甲酸

Methyl N-((R,S)-1-Benzyloxycarbonylpiperidine-2-carbonyl)-(S)-phenylalanate