Using O=C(NCCC[C@@H]1c2[nH]c3ccccc3c2C[C@H]2C(=O)N3CCC[C@H]3C(=O)N12)OCc1ccccc1 to produce NCCC[C@@H]1c2[nH]c3ccccc3c2C[C@H]2C(=O)N3CCC[C@H]3C(=O)N12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.