Using CCCc1ccc(N)c(N)c1, O=Cc1n[nH]c2ccccc12 to produce CCCc1ccc2[nH]c(-c3n[nH]c4ccccc34)nc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.