Prasad, V. S. R. published the artcileFormation and pyrolysis of 1-(2-thiazolo[5,4-b]pyridyl)-5-aryltetrazoles, Recommanded Product: 5-Chlorothiazolo[5,4-b]pyridin-2-amine, the publication is Synthetic Communications (1990), 20(13), 1983-8, database is CAplus.
The reaction of 2-amino-5-chlorothiazolo[5,4-b]pyridine or 2-amino-5-methoxythiazolo[5,4-b]pyridine with RC6H4COCl (R = H, 4-Me, 2-Cl, 4-Cl, 4-MeO) gave the resp. amides which were treated with PCl5 and then with NaN3 to give (thiazolopyridyl)phenyltetrazole derivatives The latter were pyrolyzed to give 2-aryl-1,2,4-triazolo[3′,2′:2,3]thiazolo[5,4-b]pyridines I (same R), presumably via a nitrene intermediate.
Synthetic Communications published new progress about 31784-71-1. 31784-71-1 belongs to thiazole, auxiliary class Other Aromatic Heterocyclic,Chloride,Amine, name is 5-Chlorothiazolo[5,4-b]pyridin-2-amine, and the molecular formula is C6H4ClN3S, Recommanded Product: 5-Chlorothiazolo[5,4-b]pyridin-2-amine.
Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/thiazole,
Thiazole | chemical compound | Britannica