IUPAC:ethyl 4-[2'-(3,5-dichloro-4-hydroxyphenoxy)-7',9',9'-trimethyl-3-oxo-7',8',9',10'-tetrahydro-3H-12'-oxa-10'-azaspiro[2-benzofuran-1,5'-tetracen]-10'-yl]butanoate
IUPAC:ethyl 4-[2'-(3,5-dichloro-4-hydroxyphenoxy)-7',9',9'-trimethyl-3-oxo-7',8',9',10'-tetrahydro-3H-12'-oxa-10'-azaspiro[2-benzofuran-1,5'-tetracen]-10'-yl]butanoate