顺式-2-(叔丁氧羰基氨基)-1-环戊羧酸

1,8-diazido-anthraquinone

(1S,2R,αR)-2--1-(carbobenzyloxy)cyclopentane

benzyl (3aS,6aR)-3-oxohexahydro-1H-cyclopenta[c]isoxazole-1-carboxylate

2-[N-(R)-1-phenylethyl]-amino-1-carbobenzoxycyclopentene