Using O=Cc1ccccc1, NC(=O)c1ccc(Oc2cccc3c2CCNC3)nc1 to produce NC(=O)c1ccc(Oc2cccc3c2CCN(Cc2ccccc2)C3)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.