5116-77-8 2,2,4,4,6,6-hexahydro-2,2,4,4,6,6-hexapropoxy-1,2,3,4,5,6-triazatriphosphorine 974-68-5 2,2,4,4,6,6-Hexakis(dimethylamino)-1,3,5,2,4,6-triazatriphosphorine 601491-44-5 13-Oxa-6,7-diselena-2,11-diazapentadecanoic acid,3,10-bis[(1,1-dimethylethoxy)carbonyl]-14,14-dimethyl-12-oxo-,1,1-dimethylethyl ester, (3S,10S)-