With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.100361-18-0,7-Chloro-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic Acid,as a common compound, the synthetic route is as follows.
A solution of amine 135 (0.48 MMOL) and triethylamine (0.28 mL, 2.0 MMOL) in acetonitrile (7 mL) was treated with 7-CHLORO-1-CYCLOPROPYL-6-FLUORO-4-OXO-1, 4- DIHYDRO- [1, 8] naphthyridine-3-carboxylic acid (113 mg, 0.40 MMOL) under nitrogen. After 5 min, the reaction mixture was warmed to reflux temperature and the reaction mixture was allowed to stir for 24h. The resulting mixture was allowed to cool to room temperature, concentrated in vacuo and the residue was diluted with water. The product was collected by filtration, and then washed with water and a small amount of methanol to afford the title compound (178 mg, 87%) as a white solid. MS 511 (M+H).
As the paragraph descriping shows that 100361-18-0 is playing an increasingly important role.
Reference£º
Patent; JANSSEN PHARMACEUTICA, N.V.; WO2005/33108; (2005); A1;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem