Using O=C1CCc2c(cccc2OCCCCS(=O)(=O)c2ccccc2)N1 to produce O=c1ccc2c(OCCCCS(=O)(=O)c3ccccc3)cccc2[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.