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. 1146629-75-5, name is (4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate. This compound has unique chemical properties. The synthetic route is as follows. name: (4-Chloro-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl pivalate
6-(2-methyl-5-nitrophenyl)-1H-indole (1 g, 4.2 mmol) was dissolved in 1,4-dioxane solution (28 mL). (4-chloro-7H-pyrrolo[2,3-d]pyrimidine-7-yl)methyl pivalate (1.35 g, 5.04 mmol) and potassium carbonate (1.74 g, 12.6 mmol) were added, and then a nitrogen gas was injected for 5 minutes to remove the gas included in the mixture solution. Then, the reaction vessel was placed in an oil bath heated to 120 C., and Pd(OAc)2 (95 mg, 0.42 mmol) and Xantphos (365 mg, 0.63 mmol) were added and stirred for 2 hours. After the reaction was completed, it was extracted with ethyl acetate and water. The collected organic layers were dried over anhydrous sodium sulfate and concentrated. The residue was purified by MPLC to obtain the target compound (3.53 g, 72%) as a yellow solid. 1H NMR (400 MHz, CDCl3-d6) delta 8.84 (s, 1H), 8.56 (s, 1H), 8.20 (d, J=2.4 Hz, 1H), 8.11 (dd, J=2.4 Hz, 8.4 Hz, 1H), 7.95 (d, J=3.6 Hz, 1H), 7.73 (d, J=8.0 Hz, 1H), 7.51 (d, J=4.0 Hz, 1H), 7.43 (d, J=8.4 Hz, 1H), 7.21 (dd, J=1.6 Hz, 8.0 Hz, 1H), 6.87 (d, J=3.6 Hz, 1H), 6.79 (d, J=4.0 Hz, 1H), 6.28 (s, 2H), 2.42 (s, 3H), 1.17 (s, 9H)
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Reference:
Patent; KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY; SIM, Tae Bo; YOON, Ho Jong; HUR, Woo Young; NAM, Yun Ju; CHOI, Hwan Geun; (17 pag.)US2018/50036; (2018); A1;,
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