Using O=C(OCc1ccccc1)ON1C(=O)CCC1=O, c1nc2c([nH]1)CCNC2 to produce O=C(OCc1ccccc1)N1CCc2[nH]cnc2C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.