Reference of 941685-26-3, 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. 941685-26-3, name is 4-Chloro-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine. A new synthetic method of this compound is introduced below.
4- chloro-7 – ((2- (trimethylsilyl) ethoxy) methyl) -7H-pyrrolo [2,3-d] pyrimidine (Compound A, 500mg, 1.25mmol, 1.0eq) and5- (4,4,5,5-tetramethyl-1,3,2-dioxaborolane hetero-pentyl 2-yl) -7-tosyl–7H- pyrrolo [2,3-d] pyrimidine(Compound B, 392mg, 1.38mmol, 1.1eq) was dissolved in DME (10mL) mixture / 2M sodium carbonate solution (5mL) was added Pd (PPh3) 4 (144mg, 0.125mmol, 0.1eq) under N2 atmosphere, after addition was complete the reaction was warmed to reflux for 3h. TLC monitored the reaction was complete (Rf = 0.1, PE: EA = 3: 1), cooled to room temperature and added to H2O (30mL) and EA (50 mL) separated, aqueous phase extracted with EA three times, the combined organic phase was washed with saturated brine once, after the organic phase was dried over anhydrous magnesium sulfate, and column chromatography (PE: EA = 3: 1-1: 1) give 224 mg of a pale yellow solid (compound C).
At the same time, in my other blogs, there are other synthetic methods of this type of compound,941685-26-3, 4-Chloro-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidine, and friends who are interested can also refer to it.
Reference:
Patent; Jiangsu Kefeiping Pharmaceutical Co., Ltd.; Nanjing Kefeipingshenghui Pharmaceutical Co., Ltd.; Nanjing Kefeiping Pharmaceutical Co., Ltd.; Qin Yinlin; Su Mei; Jin Qiu; Chen Tao; Wu Xianzhi; Jiang Jianhua; (15 pag.)CN105524067; (2016); A;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia