Using COc1ccc2c(c1)c(-c1cc3nccnc3[nH]1)cn2Cc1ccccc1 to produce COc1ccc2[nH]cc(-c3cc4nccnc4[nH]3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.