1416712-98-5Relevant articles and documents
Synthetic method of drug intermediate nitrogen-containing heterocycle-containing brominated compound
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, (2020/03/29)
The invention relates to a method for synthesizing a pharmaceutical intermediate nitrogen heterocyclic bromo-compound. The method comprises that 6-bromoisoquinoline, dichloromethane and m-chloroperoxybenzoic acid as raw materials undergo a reaction to produce a mixture 6-bromoisoquine oxynitride, phosphorus oxychloride is added into the mixture so that solid and water phase products are obtained,the solid products are dried, the water phase products are repeatedly washed and are extracted multiple times, the organic phase is spin-dried, the solid and water phases are treated so that 6-bromo-1-chloroisoquinoline is obtained, the solid crude product and the water crude product are mixed, the mixture is treated through a silica gel column of 100-200 meshes, the mixture is eluted through a petroleum ether PE: ethyl acetate EA eluent A to form a pure product 6-bromo-1-chloroisoquinoline, trimethylbromosilane, acetonitrile and 6-bromo-1-chloroisoquinoline undergo a reaction, pH of the reaction product is adjusted to 7 so that 1, 6-dibromoisoquinoline is obtained, and the 1, 6-dibromoisoquinoline is added into dichloroditriphenyl phosphine and a homemade Grignard reagent so that a finalproduct 6-bromo-1-methylisoquinoline is obtained. The method has the advantages of clear processes, less waste, high yield, raw material saving and operation easiness.
Discovery of Potent and Selective Allosteric Inhibitors of Protein Arginine Methyltransferase 3 (PRMT3)
Kaniskan, H. ümit,Eram, Mohammad S.,Zhao, Kehao,Szewczyk, Magdalena M.,Yang, Xiaobao,Schmidt, Keith,Luo, Xiao,Xiao, Sean,Dai, Miao,He, Feng,Zang, Irene,Lin, Ying,Li, Fengling,Dobrovetsky, Elena,Smil, David,Min, Sun-Joon,Lin-Jones, Jennifer,Schapira, Matthieu,Atadja, Peter,Li, En,Barsyte-Lovejoy, Dalia,Arrowsmith, Cheryl H.,Brown, Peter J.,Liu, Feng,Yu, Zhengtian,Vedadi, Masoud,Jin, Jian
, p. 1204 - 1217 (2018/02/17)
PRMT3 catalyzes the asymmetric dimethylation of arginine residues of various proteins. It is crucial for maturation of ribosomes and has been implicated in several diseases. We recently disclosed a highly potent, selective, and cell-active allosteric inhibitor of PRMT3, compound 4. Here, we report comprehensive structure-activity relationship studies that target the allosteric binding site of PRMT3. We conducted design, synthesis, and evaluation of novel compounds in biochemical, selectivity, and cellular assays that culminated in the discovery of 4 and other highly potent (IC50 values: ～10-36 nM), selective, and cell-active allosteric inhibitors of PRMT3 (compounds 29, 30, 36, and 37). In addition, we generated compounds that are very close analogs of these potent inhibitors but displayed drastically reduced potency as negative controls (compounds 49-51). These inhibitors and negative controls are valuable chemical tools for the biomedical community to further investigate biological functions and disease associations of PRMT3.
Isoquinoline synthesis by C-H activation/annulation using vinyl acetate as an acetylene equivalent
Webb, Nicola J.,Raw, Steven A.,Marsden, Stephen P.
, p. 5200 - 5205 (2018/06/19)
Vinyl acetate is used as an acetylene equivalent in rhodium(III)-catalysed C-H activation/annulation with aryl ketoxime esters. Extension to an aldoxime ester allows for a concise formal synthesis of decumbenine B.
PROCESS FOR THE MANUFACTURE OF 6-ALKYNYL-PYRIDINE DERIVATIVES
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Page/Page column 41, (2017/12/15)
The application includes a description of novel intermediates, of new manufacturing steps resulting in a novel and improved process for producing the intermediates and the final compounds, i.e., 6-alkynyl-pyridine derivatives. The intermediates of the invention are useful to produce 6-alkynyl-pyridine derivatives, which compounds are useful for the treatment of cancer.
Rh-catalyzed sequential oxidative C-H activation/annulation with geminal-substituted vinyl acetates to access isoquinolines
Chu, Haoke,Sun, Song,Yu, Jin-Tao,Cheng, Jiang
supporting information, p. 13327 - 13329 (2015/08/24)
The concise synthesis of 3-substituted or non-C3-substituted isoquinolines through Rh-catalyzed sequential oxidative C-H activation/annulation with geminal-substituted vinyl acetates was developed with good functional group tolerance. The protocol was successfully applied to the total synthesis of the natural product papaverine.
