2H-PYRAZINO[1,2-A]PYRIMIDINE-1(6H)-CARBOXAMIDE,HEXAHYDRO-6-[(4-HYDROXYPHENYL)METHYL]-8-(1-NAPHTHALENYLMETHYL)-4,7-DIOXO-N-(PHENYLMETHYL)-,(6R,9AR)-REL- [ 780757-88-2 ]