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. 1211443-61-6, name is 2-Chloro-7-cyclopentyl-N,N-dimethyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide. A new synthetic method of this compound is introduced below., SDS of cas: 1211443-61-6
General procedure: tert-butyl (3-((4aminophenyl)sulfonamido)propyl)carbamate (4a, 560mg, 1.70mmol),2-chloro-7-cyclopentyl-N,N-dimethyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide (6,497mg, 1.70mmol),Pd(OAc)2 (30mg, 0.1equiv), BINAP (63mg, 0.06equiv), Cs2CO3(1.11g, 3.40mmol) were dissolved in 1,4-dioxane and degassed with argon for 5 min.The resulted mixture was heated to 105 C for 7 h. After monitored by TLC toobserve completion of reaction, the reaction mixture was filtered through Celite aftercooling to 25 C, then the solvents were removed in vacuo. The crude product waspurified by silica gel column chromatography to afford intermediates 7a in 42% yieldaswhite solid.
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Reference:
Article; Wang, Xin; Yu, Chenhua; Wang, Cheng; Ma, Yakun; Wang, Tianqi; Li, Yao; Huang, Zhi; Zhou, Manqian; Sun, Peiqing; Zheng, Jianyu; Yang, Shengyong; Fan, Yan; Xiang, Rong; European Journal of Medicinal Chemistry; vol. 181; (2019);,
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