32779-36-5Relevant articles and documents
Preparation method 2 - methyl -5 -bromopyrimidine
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Paragraph 0034-0036, (2021/11/26)
The invention specifically discloses a preparation method of 2 - methyl -5 -bromopyrimidine, and belongs to the technical field of organic synthesis. The method comprises the following steps: a) taking 2 - amino -5 -bromopyrimidine as a raw material, carrying out diazotization reaction or Schedman reaction or 2 - hydroxyl -5 -bromopyrimidine as a raw material to obtain 2 -halo -5 -bromopyrimidine through a halogenated reagent. b) The carboxylic diester is substituted with 2 - halo -5 - bromopyrimidine to give 2-position substituted product. c) The last 2 -bit substituted product is reacted under basic, high temperature conditions to give 2 - methyl -5 - bromopyrimidine. The method has the advantages of easily available raw materials, low cost, simple flow and potential industrial amplification prospect.
Dimethyl sulfoxide-accelerated reductive deamination of aromatic amines with t-BuONO in tetrahydrofuran
Fang, Lu,Qi, Liang,Ye, Longfei,Pan, Zhentao,Luo, Wenjun,Ling, Fei,Zhong, Weihui
, p. 579 - 583 (2018/11/27)
An efficient method for the conversion of aryl amines into arenes by a one-pot reductive deamination has been achieved. It was found the reductive deamination using t-BuONO in tetrahydrofuran could be accelerated by dimethyl sulfoxide and provided the deamination products with good yields under mild conditions. A plausible mechanism is discussed.
Preparation method for 2-chloro-5-(piperidin-4-yl)pyrimidine
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Paragraph 0020; 0021; 0022, (2018/04/02)
The invention discloses a preparation method for 2-chloro-5-(piperidin-4-yl)pyrimidine. The target product is obtained by using 2-chloropyrimidine as a starting raw material, performing a brominationreaction, performing a coupling reaction, performing an elimination reaction and performing a catalytic hydrogenation reaction. The compound provided by the invention is an important pharmaceutical intermediate.
Method for preparing 2-chloropyrimidine derivative
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Paragraph 0021; 0022, (2017/12/27)
The invention discloses a method for preparing a 2-chloropyrimidine derivative, namely 2-chlorine-5-(piperidine-4-yl) pyrimidine. The method comprises the following steps: by taking 2-chloropyrimidine as an initial raw material, performing reactions of bromine introduction, coupling, elimination and catalytic hydrogenation, thereby obtaining a target product. The compound is a significant medicinal intermediate.
Preparation of 2-amino-pyrimidine-5-boronic acid frequency that ester method
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Paragraph 0017, (2017/01/02)
A method of preparing 2-aminopyrimidine-5-boronic acid pinacol ester is disclosed. The method includes subjecting 2-chloropyrimidine that is a raw material and NBS to bromization under catalysis of BF3-Et2O to obtain 2-chloro-5-bromopyrimidine; reacting the 2-chloro-5-bromopyrimidine with n-Bu3MgLi at a temperature ranging from -20 DEG C to -10 DEG C; adding methoxyboronic acid pinacol ester or isopropoxyboronic acid pinacol ester; performing boronization to obtain 2-chloropyrimidine-5-boronic acid pinacol ester; adding into ammonia water or a methanol-ammonia solution; and reacting at 80-100 DEG C in a sealed manner to obtain the 2-chloropyrimidine-5-boronic acid pinacol ester. Synthetic process conditions of the method are mild. An ultralow-temperature reaction is avoided. Reactions can be performed continuously. A pure product can be obtained only by simple recrystallization of the final product.
Pyrrole inhibitors of S-nitrosoglutathione reductase as therapeutic agents
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Page/Page column 289, (2015/11/16)
The present invention is directed to inhibitors of S-nitrosoglutathione reductase (GSNOR), pharmaceutical compositions comprising such GSNOR inhibitors, and methods of making and using the same.
SPIRO-SUBSTITUTED OXINDOLE DERIVATIVES HAVING AMPK ACTIVITY
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Page/Page column 111, (2015/01/07)
The present invention relates to compounds of formula (I), which have valuable pharmacological properties, in particular are activators of AMPK and which are therefore useful in the treatment of certain disorders that can be prevented or treated by activation of this receptor. The compounds are suitable for treatment and prevention of diseases which can be influenced by this receptor, such as metabolic diseases, in particular diabetes type 2.
OLEFIN SUBSTITUTED OXINDOLES HAVING AMPK ACTIVITY
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Page/Page column 105, (2015/01/07)
The present invention relates to compounds of formula (I), which have valuable pharmacological properties, in particular are activators of AMPK and which are therefore useful in the treatment of certain disorders that can be prevented or treated by activation of this receptor. The compounds are suitable for treatment and prevention of diseases which can be influenced by this receptor, such as metabolic diseases, in particular diabetes type 2.
Synthesis, characterization and pharmacological study of 4,5-dihydropyrazolines carrying pyrimidine moiety
Adhikari, Adithya,Kalluraya, Balakrishna,Sujith, Kizhakke Veedu,Gouthamchandra, Kuluvar,Jairam, Ravikumar,Mahmood, Riaz,Sankolli, Ravish
, p. 467 - 474 (2012/11/07)
A series of 5-bromo-2-(3,5-diaryl-4,5-dihydro-1H-pyrazol-1-yl)pyrimidine were prepared under conventional heating as well as microwave reaction condition. The newly synthesized compounds were characterized on the basis of elemental, spectral and single crystal X-ray studies. These new compounds were screened for their antioxidant, anti-inflammatory and analgesic activities. Some of these compounds exhibited potent biological activities compared to the standard drug.
Discovery of potent and novel S-nitrosoglutathione reductase inhibitors devoid of cytochrome P450 activities
Sun, Xicheng,Qiu, Jian,Strong, Sarah A.,Green, Louis S.,Wasley, Jan W.F.,Blonder, Joan P.,Colagiovanni, Dorothy B.,Mutka, Sarah C.,Stout, Adam M.,Richards, Jane P.,Rosenthal, Gary J.
supporting information; experimental part, p. 5849 - 5853 (2011/10/19)
The pyrrole based N6022 was recently identified as a potent, selective, reversible, and efficacious S-nitrosoglutathione reductase (GSNOR) inhibitor and is currently undergoing clinical development for the treatment of acute asthma. GSNOR is a member of the alcohol dehydrogenase family (ADH) and regulates the levels of S-nitrosothiols (SNOs) through catabolism of S-nitrosoglutathione (GSNO). Reduced levels of GSNO, as well as other nitrosothiols (SNOs), have been implicated in the pathogenesis of many diseases including those of the respiratory, cardiovascular, and gastrointestinal systems. Preservation of endogenous SNOs through GSNOR inhibition presents a novel therapeutic approach with broad applicability. We describe here the synthesis and structure-activity relationships (SAR) of novel pyrrole based analogues of N6022 focusing on removal of cytochrome P450 inhibition activities. We identified potent and novel GSNOR inhibitors having reduced CYP inhibition activities and demonstrated efficacy in a mouse ovalbumin (OVA) model of asthma.