Using CC(C)(C)OC(=O)OC(=O)OC(C)(C)C, Cc1nc2ccccc2[nH]1 to produce Cc1nc2ccccc2n1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.