(-)-Trofosphamide (R)-N,N,3-Tris(2-chloroethyl)tetrahydro-2H-1,3,2-oxazaphosphorin-2-amine 2-oxide 2H-1,3,2-Oxazaphosphorin-2-amine, N,N,3-tris(2-chloroethyl)tetrahydro-, 2-oxide, (R)- 72282-84-9 L-Trofosfamide