Using CCOP(=O)(OCC)C(N)P(=O)(OCC)OCC, O=Cc1ccccn1 to produce CCOP(=O)(OCC)C(NCc1ccccn1)P(=O)(OCC)OCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.