Using COc1c(C(=O)N(C)CCNC(=O)OC(C)(C)C)sc2c1c(=O)n(CC(=O)c1ccccc1)c1ccccc21 to produce COc1c(C(=O)N(C)CCN)sc2c1c(=O)n(CC(=O)c1ccccc1)c1ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.