Using CCC1(O)c2cc3n(c(=O)c2COC1O)Cc1cc2ccccc2nc1-3 to produce CCC(=O)c1cc2n(c(=O)c1COC=O)Cc1cc3ccccc3nc1-2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.