In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Design and Synthesis of the Potent, Orally Available, Brain-Penetrable Arylpyrazole Class of Neuropeptide Y5 Receptor Antagonists, published in 2003-02-27, which mentions a compound: 91912-53-7, mainly applied to indancarboxamide arylpyrazolyl preparation neuropeptide Y5 receptor antagonist, Formula: C8H8N4.
Novel arylpyrazole derivatives were synthesized and evaluated as neuropeptide Y5 receptor antagonists. The 2,3-dihydro-1H-cyclopenta[a]naphthalene derivative I showed good binding affinity and antagonistic activity for the Y5 receptor. After intracerebroventricular administration in SD rats, (-)-I significantly inhibited food intake that was induced by the centrally administered Y5-preferring agonist, bovine pancreatic polypeptide, but had only a negligible effect on NPY-induced feeding.
Compounds in my other articles are similar to this one(3-(Pyridin-4-yl)-1H-pyrazol-5-amine)Formula: C8H8N4, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.