Using COc1cccc2c(N3CCSCC3)nc(N3CCNCC3)cc12, O=S(=O)(O)O to produce COc1cccc2c(N3CCS(=O)CC3)nc(N3CCNCC3)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.