A convergent synthesis of the imidazopyridine scaffold of fluorescent alkaloid ageladine A was written by Mineno, Tomoko;Kansui, Hisao;Yoshimitsu, Hitoshi. And the article was included in Tetrahedron Letters in 2011.Quality Control of (2-Chloro-pyridin-3-yl)-carbamic acid tert-butyl ester This article mentions the following:
A convergent synthesis of the imidazopyridine scaffold of fluorescent alkaloid ageladine A was achieved, employing 3-amino-2-chloropyridine as starting material. A carboxylate was introduced using BuLi and dry ice as the key reaction. In the experiment, the researchers used many compounds, for example, (2-Chloro-pyridin-3-yl)-carbamic acid tert-butyl ester (cas: 209798-48-1Quality Control of (2-Chloro-pyridin-3-yl)-carbamic acid tert-butyl ester).
(2-Chloro-pyridin-3-yl)-carbamic acid tert-butyl ester (cas: 209798-48-1) belongs to pyridine derivatives. Pyridine has a conjugated system of six π electrons that are delocalized over the ring. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Quality Control of (2-Chloro-pyridin-3-yl)-carbamic acid tert-butyl ester