(2R,4R)-N-TERT-BUTOXYCARBONYL-4-(DICYCLOHEXYLPHOSPHINO)-2-[(DIPHENYLPHOSPHINO)METHYL]PYRROLIDINE

(2R,4R)-(+)-2-(DiphenylphosphinoMethyl)-4-(dicyclohexylphosphino)-N-(t-butoxycarbonyl)pyrrolidine, Min. 97% (R,R-BCPM)