You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 1-(6,7-dimethyl-2,5-dihydrobenzo[b][1,8]naphthyridin-2-id-10-yl)ethyl formate;1-(6,8-dimethyl-2,5-dihydrobenzo[b][1,8]naphthyridin-2-id-10-yl)ethyl formate;1-(6,9-dimethyl-2,5-dihydrobenzo[b][1,8]naphthyridin-2-id-10-yl)ethyl formate;1-(7,8-dimethyl-2,5-dihydrobenzo[b][1,8]naphthyridin-2-id-10-yl)ethyl formate;1-(7,9-dimethyl-2,5-dihydrobenzo[b][1,8]naphthyridin-2-id-10-yl)ethyl formate;methane;1-(6,8,9-trimethyl-2,5-dihydrobenzo[b][1,8]naphthyridin-2-id-10-yl)ethyl formate;yttrium using the IUPAC nomenclature.
user
C104H108N12O12Y6-6
assistant