Using CNc1ccc(C(=O)O)cc1, CSc1ccc(CCN2CCNCC2)cc1 to produce CNc1ccc(C(=O)N2CCN(CCc3ccc(SC)cc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.