Using CCOC(=O)CCNC(=O)c1ccc(-c2ccccc2CNc2ccc(-c3ccccc3)cc2)cn1 to produce O=C(O)CCNC(=O)c1ccc(-c2ccccc2CNc2ccc(-c3ccccc3)cc2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.