Using CCc1cc(-c2cccs2)c(C)[nH]c1=O, O=Cc1ccccn1 to produce CCc1cc(-c2ccc(C(O)c3ccccn3)s2)c(C)[nH]c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.