Using CC(C)(ON1C(=O)c2ccccc2C1=O)C(=O)Cl, CNNC(=O)OC(C)(C)C to produce CN(NC(=O)OC(C)(C)C)C(=O)C(C)(C)ON1C(=O)c2ccccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.