Using CN(C(=O)OCc1ccccc1)[C@H](COC(=O)Nc1cc2ccccc2cn1)CC(=O)OC(C)(C)C to produce CN[C@H](COC(=O)Nc1cc2ccccc2cn1)CC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.