2-Butenoic acid, 2-methyl-, 2,3,3a,4,5,6,7, 11a-octahydro- 6,10-dimethyl-3-methylene-2,7-dioxo-6, {9-epoxycyclodeca[b]furan-4-yl} ester, {[3aR-[3aR*,4S*(Z),6R*,10Z,} 11aR*\]\]- 77448-64-7 AIDS-161076 AIDS161076 Lychnopholide NSC669145