Using COC(=O)COc1ccc(C(=O)O)cc1, CC(C)(C)OC(=O)[C@H](CN)NC(=O)OCc1ccccc1 to produce COC(=O)COc1ccc(C(=O)NC[C@H](NC(=O)OCc2ccccc2)C(=O)OC(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.