Using CCCCCCCCC1Cc2ccc(C(=N)N)cc2C1=O to produce CCCCCCCCCCc1cnc(-c2ccc3c(c2)C(=O)C(CCCCCCCC)C3)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.