IUPAC:(1S,16R,17R,19S)-16-{[(2S,4R,5S,6S)-5-acetyl-4,5-dihydroxy-6-methyloxan-2-yl]oxy}-3,10-dihydroxy-17-methyl-4',5'-dihydro-1'H-18-oxaspiro[pentacyclo[15.2.1.0^{2,15}.0^{4,13}.0^{6,11}]icosane-19,2'-pyrrolo[2,3-b]pyrrole]-2(15),3,6(11),7,9,13-hexaene-5,12-dione
IUPAC:(1S,16R,17R,19S)-16-{[(2S,4R,5S,6S)-5-acetyl-4,5-dihydroxy-6-methyloxan-2-yl]oxy}-3,10-dihydroxy-17-methyl-4',5'-dihydro-1'H-18-oxaspiro[pentacyclo[15.2.1.0^{2,15}.0^{4,13}.0^{6,11}]icosane-19,2'-pyrrolo[2,3-b]pyrrole]-2(15),3,6(11),7,9,13-hexaene-5,12-dione