Using COc1c(CCCCCc2c[nH]nn2)ccn(-c2ccccc2C)c1=S to produce Cc1ccccc1-n1ccc(CCCCCc2c[nH]nn2)c(O)c1=S, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.