Using CC(C)(C)OC(=O)c1ccc2c(c1)NC(=O)OCC2, CCI to produce CCN1C(=O)OCCc2ccc(C(=O)OC(C)(C)C)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.