Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 313339-35-4, name is 4,6-Dichloro-2-(methylthio)pyrimidine-5-carboxylic acid. This compound has unique chemical properties. The synthetic route is as follows. Recommanded Product: 313339-35-4
3.0 g (12.55 mmol, 1.0 eq) of 4,6-dichloro-2-(methylthio)pyrimidine-5-carboxylic acid was dissolved in 40 mL of anhydrous toluene, to which 15 mL of thionyl chloride (SOCl2) was added, followed by stirring at 115 C. for 12 hours. The reaction solvent was concentrated under reduced pressure and dried to give acid chloride. Then, 1.6 g of 5-chloro-7-(methylthio)pyrimido[4,5-d]pyrimidine-4(1H)-one was prepared as a white solid according to the same manner as described in step 2 of Example 66 (2 step yield: 56%). 1H NMR (300 MHz, DMSO-d6) delta 2.56-2.58 (d, J=6.0, 3H), 8.42-8.44 (d, J=6.0, 1H), 12.88 (br s, 1H).
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Reference:
Patent; KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY; Lee, Ge Hyeong; Lim, Hee-Jong; Cho, Heeyeong; Park, Woo Kyu; Kim, Seong Hwan; Choi, Jung Hwan; (148 pag.)US2018/105527; (2018); A1;,
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