3-(2,2-Dimethyl-1,3-benzodioxol-5-yl)-5-(4-(4-(3-(2,2-dimethyl-1,3-benzodioxol-5-yl)-4,6-dioxo-3a,4,6,6a-tetrahydro-5H-pyrrolo[3,4-d]isoxazol-5-yl)benzyl)phenyl)-3aH-pyrrolo[3,4-d]isoxazole-4,6(5H,6aH\t)-dione AIDS-136939 AIDS136939 NSC640236