Using O=S(=O)(O)O, CC(C)c1nc2c(N)cc(N3CCOCC3)cc2n1Cc1cccc2ccccc12 to produce CC(C)c1nc2c(O)cc(N3CCOCC3)cc2n1Cc1cccc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.