ethyl 6-(tert-butyldimethylsilyloxy)-2-oxohexanoate

2(S)-2-(benzyloxycarbonylamino)-6-hydroxyhexanoic acid

5-D-羟基丁基海因

2-氨基-6-羟基己酸

(S)-2-(2-oxooxepan-3-yl)isoindoline-1,3-dione