Using O=C1NC(=O)c2ccccc21, CC(C)(C)OC(=O)NC1CN(C(=O)OCc2ccccc2)CCC1O to produce CC(C)(C)OC(=O)NC1CN(C(=O)OCc2ccccc2)CCC1N1C(=O)c2ccccc2C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.