1260670-05-0, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 3-Bromo-8-chloro-1,7-naphthyridine, cas is 1260670-05-0,the naphthyridine compound, it is a common compound, a new synthetic route is introduced below.
Method N B-9 Ex. 3 To a stirred solution of Intermediate B-9 (400 mg, 0.937 mmol) and 3-bromo-8-chloro-l,7- naphthyridine (252 mg, 1.03 mmol) in THF (10 mL) was added LHMDS (1 M in THF, 3.28 mL, 3.28 mmol) at RT. The mixture was stirred at 45 C overnight, quenched with NH CI (sat.) and extracted with DCM. The combined organic extracts were dried over Na2S04 and concentrated. The residue was treated with 5 mL of DCM and 0.5 mL of TFA and stirred at 25 C for 2 h. The mixture was neutralized with NaHC03 and extracted with DCM. The organic layer was washed with brine, dried over Na2S04 and concentrated. The residue was purified by silica column chromatography (PE: EtOAc = 1 : 1) to afford example 3. MS for example 3: m/e = 533 and 535 (M+l).
The chemical industry reduces the impact on the environment during synthesis,1260670-05-0,3-Bromo-8-chloro-1,7-naphthyridine,I believe this compound will play a more active role in future production and life.
Reference£º
Patent; MERCK SHARP & DOHME CORP.; WALSH, Shawn, P.; CUMMING, Jared, N.; HE, Shuwen; TAOKA, Brandon, M.; TRUONG, Quang, T.; WU, Wen-Lian; (122 pag.)WO2015/187437; (2015); A1;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem