With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.254-60-4,1,8-Diazanaphthalene,as a common compound, the synthetic route is as follows.
Step C: 2-Chloro-3-cyclopropyl-[1,8]naphthyridine (4-5). A mixture of naphthyridine 4-4 (14 g, 77 mmol) and 100 mL POCl3 and 0.1 mL DMF was refluxed at 120 C. for 3 hr and concentrated. The residue was treated with 300 mL ice-water and solid K2CO3 until pH=9. The mixture was extracted with ethyl acetate (*3), washed with brine and dried over MgSO4. After solvent removal, the desired compound 4-5 was obtained as a yellowish solid. 1H NMR (400 MHz, CDCl3): delta 9.00 (q, 1H), 8.10 (q, 1H), 7.78 (s, 1H), 7.50 (q, 1H), 2.34 (m, 1H), 1.00 (m, 2H), 0.82 (m, 2H)., 254-60-4
254-60-4 1,8-Diazanaphthalene 136069, anaphthyridine compound, is more and more widely used in various fields.
Reference£º
Patent; Merck & Co., Inc.; US6410526; (2002); B1;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem