Using CI, O=C(OCc1ccccc1)N1CCC(N2CCCN(CCO)C2=O)CC1 to produce COCCN1CCCN(C2CCN(C(=O)OCc3ccccc3)CC2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.