Using NCCc1c[nH]cn1, CN(CC(c1ccccc1)c1ccccc1)C(=O)C(O)c1ccccc1 to produce CN(CC(c1ccccc1)c1ccccc1)C(=O)C(NCCc1c[nH]cn1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.