1-((3aS,4S,6aR)-2,2-dimethyl-5-(9-phenyl-9H-fluoren-9-yl)tetrahydro-4H-[1,3]dioxolo[4,5-c]pyrrol-4-yl)-2-(methoxymethoxy)ethan-1-one

L-羟基脯氨酸

(2S,3S,4R)-N-benzyl-3,4-(isopropylidenedioxy)-2-vinyl-pyrrolidine

(2S,3S,4R)-N-benzyl-2-formyl-3,4-(isopropylidenedioxy)pyrrolidine

(S)-1-benzyl-2,5-dihydro-2-((S)-2',2'-dimethyl-1',3'-dioxolan-4'-yl)-1H-pyrrole