Application of 1,1-Dioxo-isothiazolidine

The naphthyridine compound, cas is 952059-69-7 name is 8-Chloro-3-methoxy-1,5-naphthyridine, mainly used in chemical industry, its synthesis route is as follows.

952059-69-7, Example 41 (Method C5)Synthesis of N-(6-(7-methoxy-l,5-naphthyridin-4-yloxy)pyridin-3-yl)-4- phenylphthalazin-l-amine A pyrex reaction tube was charged with 8-chloro-3-methoxy-l ,5-naphthyridine (50 mg, 0.26 mmol), 5-(4-phenylphthalazin-l-ylamino)pyridin-2-ol (80 mg, 0.26 mmol), cesium carbonate (249 mg, 0.76 mmol) and DMSO (2 mL). The tube was sealed and the reaction mixture was heated to 130 0C. After 3.5 h, an aliquot was analyzed by LCMS, and the desired product was determined to be the major peak. The reaction mixture was diluted with DMSO and purified by Gilson HPLC {5-65% (0.1% TFA in CH3CN) in H2O over 20 min}. The product-containing fractions were combined, basifed by addition of aq. NaHCO3 and extracted with DCM. The organic portion was dried with Na2SO4, filtered, and concentrated to afford material that was further purified by silica gel chromatography, 90/10/1 CH2Cl2MeOHZNH4OH. This provided N-(6-(7-methoxy-l,5-naphthyridin-4- yloxy)pyridin-3-yl)-4-phenylphthalazin-l -amine as pure material. MS [M+H] = 473.01.48minutes. Calc’d for C28H20N6O2: 472.5.

As the rapid development of chemical substances, we look forward to future research findings about 952059-69-7

Reference£º
Patent; AMGEN INC.; WO2008/124083; (2008); A2;,
1,8-Naphthyridine – Wikipedia
1,8-Naphthyridine | C8H6N2 – PubChem