Using COc1cccc(CC2NC=C(C=O)c3cc(OCCCOC(C)=O)c(OC)cc32)c1 to produce COc1cccc(Cc2ncc(C=O)c3cc(OCCCOC(C)=O)c(OC)cc23)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.