Using COc1ccc2c(C)n[nH]c2c1, CC(C)(C)OC(=O)OC(=O)OC(C)(C)C to produce COc1ccc2c(C)nn(OC(=O)OC(C)(C)C)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.