Using COC(=O)C(Cc1ccccc1)CP(=O)(O)C(Cc1ccccc1)NC(=O)OCc1ccccc1 to produce O=C(NC(Cc1ccccc1)P(=O)(O)CC(Cc1ccccc1)C(=O)O)OCc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.