218915-15-2 AIDS-000847 AIDS000847 Indeno[5',4':4,5]cyclohept[1,2-c]oxepin-9(1H)-one, 3-[(1S)-1-[(2S)-3,6-dihydro-5-methyl-6-oxo-2H-pyran-2-yl]ethyl]-2,3,3a,4,5,11,11a,12,13,13b-decahydro-12-hydroxy-3a,11,11,13b-tetramethyl-, (3R,3aR,11aS,12R,13bR)- Lancilactone A