Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 147118-37-4, name is N-(4-(4-Fluorophenyl)-5-formyl-6-isopropylpyrimidin-2-yl)-N-methylmethanesulfonamide. A new synthetic method of this compound is introduced below., 147118-37-4
Example 10. [262] E-(6-{2-[2-(N-methyl-N-methanesulfonylamino)-4-(4-fluorophenyl)-6-isopropyl-pyrimidin-5-yl]vinyl}-[(4R,6S)-2,2-dimethyl-[1,3]dioxan-4-yl])-N-methoxy-N-methyl-acetamide [263] 2-[(4R,6S)-2,2-dimethyl-6-(1-phenyl-1H-tetrazole-5-sulfonylmethyl)-[1,3]dioxan-4-yl]-N-methoxy-N-methyl-acetamide (5.4 g), N-[4-(4-fluorophenyl)-5-formyl-6-isopropyl-pyrimidin-2-yl]-N-methyl-methanesulfonamide (3.9 g), and tetrahydrofuran (54 mL) were added to a reactor and then the reaction mixture was cooled to -70C. A solution of lithium bis(trimethylsilyl)amide in tetrahydrofuran (1M, 15.0 mL) was slowly added to the reaction mixture, the temperature of which was then adjusted to -20?-10C. The reaction mixture was stirred for 1 hours and then 8% sodium bicarbonate solution (100.0 mL) was added under stirring. The separated organic layer was washed with water (100.0 mL) and then concentrated under reduced pressure to obtain E-(6-{2-[2-(N-methyl-N-methanesulfonylamino)-4-(4-fluorophenyl)-6-isopropyl-pyrimidin-5-yl]vinyl}-[(4R,6S)-2,2-dimethyl-[1,3]dioxan-4-yl])-N-methoxy-N-methyl-acetamide as a solid (5 g, yield 80%).[264] 1H-NMR, 400 MHz, CDCl3, ppm : 1.23~1.27(m, 7H), 1.40(s, 3H), 1.50(s, 3H), 2.42~2.80(dd, 2H), 3.20(s, 3H), 3.37(q, 1H), 3.51(s, 3H), 3.57(s, 3H), 3.70(s, 3H), 4.41(m, 2H), 5.44(dd, 1H), 6.49(d, 2H), 7.08(t, 2H), 7.64(q, 2H)
At the same time, in my other blogs, there are other synthetic methods of this type of compound,147118-37-4, N-(4-(4-Fluorophenyl)-5-formyl-6-isopropylpyrimidin-2-yl)-N-methylmethanesulfonamide, and friends who are interested can also refer to it.
Reference:
Patent; YUHAN CORPORATION; JU, Hyun; JOUNG, Sang-Sun; YI, Hyun-Jik; KHOO, Ja-Heouk; LIM, Jong-Chul; KIM, Jae-Gyu; WO2012/2741; (2012); A2;,
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