(2R,4R)-BPPM

(2R,4R)-N-BUTOXYCARBONYL-4-DIPHENYLPHOSPHINO-2-(DIPHENYLPHOSPHINOMETHYL)PYRROLIDINE

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