2,4,5-三脱氧-4-[[(1,1-二甲基乙氧基)羰基]氨基]-5-苯基-L-苏-戊糖酸

(2S,3S)-butyric acid 2-benzyl-5-oxopyrrolidin-3-yl ester

2-(2-Chloro-phenyl)-6-[1-phenyl-meth-(Z)-ylidene]-1-oxa-5-aza-spiro[2.4]heptane-4,7-dione

2-(3-Phenoxy-phenyl)-6-[1-phenyl-meth-(Z)-ylidene]-1-oxa-5-aza-spiro[2.4]heptane-4,7-dione

2-(4-Chloro-phenyl)-6-[1-phenyl-meth-(Z)-ylidene]-1-oxa-5-aza-spiro[2.4]heptane-4,7-dione