Using CC(C)(C)OC(=O)NCC(=O)O, COC1CNCc2ccccc21 to produce COC1CN(C(=O)CNC(=O)OC(C)(C)C)Cc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.