5-(4-(4-(4,6-Dioxo-2-phenyl-3-(3,4,5-trimethoxyphenyl)hexahydro-5H-pyrrolo[3,4-d]isoxazol-5-yl)benzyl)phenyl)-2-phenyl-3-(3,4,5-trimethoxyphenyl)dihydro-2H-pyrrolo[3,4-d]isoxazole-4,6(3H,5H)-dione AIDS-136962 AIDS136962 NSC640259