77869-81-9 N-(2-(3-Phenethylhexahydropyrimidino)ethyl)propionanilide oxalate hydrate Propanamide, N-phenyl-N-(2-(tetrahydro-3-(2-phenylethyl)-1(2H)-pyrimidinyl)ethyl)-, ethanedioate, hydrate (1:2:1)