p. 7643 - 7652
(1994)p. 4637 - 4640
(2007/10/02)methyl (2S,3R)-3-methanosulfonyloxymethyl-1-(9'-phenylfluoren-9'-yl)aziridine carboxylate
methyl (2S,3S)-3,4-bismethanosulfonyloxy-2-(9'-phenylfluoren-9'-ylamino)butyrate
methyl (2S,3S)-3,4-bis-p-toluenesulfonyloxy-2-(9'-phenylfluoren-9'-ylamino)butyrate
methyl (2S,3S)-3,4-dihydroxy-2-(9'-phenylfluoren-9'-ylamino)butyrate
(4S,5S)-2-Oxo-3-(9-phenyl-9H-fluoren-9-yl)-oxazolidine-4,5-dicarboxylic acid dimethyl ester