Using CCOC(=O)C=Cc1ccnc(-c2cc(OC)c(OC)c(OC)c2)c1 to produce CCOC(=O)CCc1ccnc(-c2cc(OC)c(OC)c(OC)c2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.