Using O=C(O)c1cc(NCC2CCN(C(=O)OCc3ccccc3)CC2)ccn1 to produce O=C(OCc1ccccc1)N1CCC(CNc2ccnc(CO)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.