On November 19, 2020, Allen, Bryce K.; Chamberlain, Brian T.; Dwight, Timothy A.; Huang, Huang; Kulkarni, Meghana M.; Lin, Zhixiong; Marino, Kristen A.; Niu, Deqiang; Shechter, Sharon; Swann, Steven published a patent.COA of Formula: C6H5BrN2O2 The title of the patent was Preparation of benzo[b][1,8]naphthyridine acetic acid derivatives as STING modulators useful in treatment and prevention of STING-associated diseases. And the patent contained the following:
The invention relates to preparation of benzonaphthyridine acetic acids(I) or pharmaceutically acceptable salts or esters thereof capable of binding to and modulating the activity of a stimulator of interferon genes (STING) protein. Compounds I wherein X is O, S, CH=CH, etc.; m is 1-3; Y is CN, OH, NH2, etc.; n is 1-4; Z is halo, CN, OH, etc.; etc., are claimed. The example compound II was prepared via multi-step synthesis using Me 2,6-dichloropyridine-3-carboxylic acid as starting material (procedure given). Compounds I were evaluated for their biol. activity (data given). Compounds I are effective modulators of STING, and can be used for the treatment and prevention of diseases caused by or associated with STING. The experimental process involved the reaction of 2-Amino-6-bromonicotinic acid(cas: 1196157-51-3).COA of Formula: C6H5BrN2O2
The Article related to benzonaphthyridine acetic acid preparation sting modulator disease treatment prophylaxis, Heterocyclic Compounds (More Than One Hetero Atom): Fused-Ring Systems With Two Or More Hetero Atoms, No More Than One Hetero Atom Per Ring and other aspects.COA of Formula: C6H5BrN2O2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary