IUPAC:N-tert-butyl-2-(2-{5-methanesulfonamido-2,2-dimethyl-9-oxo-17-oxatetracyclo[8.7.0.0^{3,8}.0^{11,16}]heptadeca-1(10),3,5,7,11,13,15-heptaen-14-yl}ethynyl)-6-methylpyridine-4-carboxamide
IUPAC:N-tert-butyl-2-(2-{5-methanesulfonamido-2,2-dimethyl-9-oxo-17-oxatetracyclo[8.7.0.0^{3,8}.0^{11,16}]heptadeca-1(10),3,5,7,11,13,15-heptaen-14-yl}ethynyl)-6-methylpyridine-4-carboxamide