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 Substances labeled in metabolically stable positions. 9. Synthesis of pyridine by thermal rearrangement of amines containing the C5N structure, published in 1995-02-28, which mentions a compound: 616-43-3, mainly applied to thermal rearrangement amine; pyrrole thermal rearrangement; pyridine thermal rearrangement amine, Name: 3-Methyl-1H-pyrrole.
Thermal rearrangement of N-methylbutylamine, N-methylpyrrole, 4-(N-methylamino)butanol and N-methyl-3-pyrrolidinol produces mixtures of various substances which contain pyridine as the basic structure. Only aromatic systems are stable under the reaction conditions.
There are many compounds similar to this compound(616-43-3)Name: 3-Methyl-1H-pyrrole. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.
Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate