Using CC(C)(C)OC(=O)N1CCN(c2cccc3c2ccn3S(=O)(=O)c2ccccc2)CC1 to produce O=S(=O)(c1ccccc1)n1ccc2c(N3CCNCC3)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.