Using O=S(=O)(O)O, COC(=O)c1cncn1C1c2ccccc2CC1(C)C to produce COC(=O)c1cncn1C1c2ccccc2C(=O)C1(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.