Using O=CN1CCNCC1, COc1ccc(C(=CC(=O)O)c2ccc(OC)cc2)cc1 to produce COc1ccc(C(=CC(=O)N2CCNCC2)c2ccc(OC)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.