(1S,4S)-2-BOC-2,5-二氮双环[2.2.1]庚烷

1-O-tert-butyl 2-O-methyl (2S,4S)-4-naphthalen-2-yloxypyrrolidine-1,2-dicarboxylate

Boc-L-羟脯氨酸

(2S,4r)-1-boc-4-苄氧基吡咯烷-2-二羧酸甲酯

1-O-tert-butyl 2-O-methyl (2S,4S)-4-(4-nitrobenzoyl)oxypyrrolidine-1,2-dicarboxylate