2-(1',2'-O-isopropylidene-1',2',3',4'-tetrahydroxybutyl)-3-oxo-N-(9-phenylfluoren-9-yl)pyrrolidine

2-[(9-phenylfluoren-9-yl)amino]-2-deoxy-3,4:5,6-di-O-isopropylidene-1-vinyl-D-mannitol

2-((9-phenylfluoren-9-yl)amino)-2-deoxy-3,4:5,6-di-O-isopropylidene-1-vinyl-D-mannose

2-(1',2'-O-isopropylidene-1',2',3'-trihydroxy-4'-acetoxybutyl)-3-oxo-N-(9-phenylfluoren-9-yl)pyrrolidine