402960-38-7Relevant academic research and scientific papers
Synthesis and biological activity of new 2,4,6-trisubstituted triazines as potential phosphoinositide 3-kinase inhibitors
Shen, Ying,Wang, Hui-Yan,Xin, Minhang,Zhang, Hao,Zhang, San-Qi
, p. 393 - 402 (2020)
Twenty-five novel 2,4,6-trisubstituted triazines were synthesized and biologically evaluated. Most of the compounds synthesized showed good antiproliferative activity against HCT-116 and MCF-7. Compounds B18 and B19 showed the best antiproliferative activity. Further study showed B18 and B19 inhibited four phosphoinositide 3-kinase isoforms and mammalian target of rapamycin with good potency. These results demonstrate that 2,4,6-trisubstituted triazines are potentially useful phosphoinositide 3-kinase inhibitors for the development of new anticancer drugs.
Development of an Efficient Synthesis of (2-Aminopyrimidin-5-yl) Boronic Acid
Patel, Nitinchandra D.,Zhang, Yongda,Gao, Joe,Sidhu, Kanwar,Lorenz, Jon C.,Fandrick, Keith R.,Mulder, Jason A.,Herbage, Melissa A.,Li, Zhibin,Ma, Shengli,Lee, Heewon,Grinberg, Nelu,Song, Jinhua J.,Busacca, Carl A.,Yee, Nathan K.,Senanayake, Chris H.
, p. 95 - 99 (2016)
A practical and cost-effective synthesis of (2-aminopyrimidin-5-yl) boronic acid 1b has been developed. Key features of the synthesis include the inexpensive in situ protection of the amine via bis-silylation using TMSCl followed by metal-halogen exchange using n-BuLi and trapping with B(Oi-Pr)3. The water-soluble boronic acid is isolated by a well-designed acid-base sequence providing the target in 80% yield and high purity for the two-step process. The large-scale (15 kg) implementation of a Suzuki-Miyaura borylation to form the pinacol boronic ester is also described.
Visible Light-Induced Borylation of C-O, C-N, and C-X Bonds
Arman, Hadi D.,Dang, Hang. T.,Haug, Graham C.,He, Ru,Jin, Shengfei,Larionov, Oleg V.,Nguyen, Viet D.,Nguyen, Vu T.,Schanze, Kirk S.
supporting information, (2020/02/04)
Boronic acids are centrally important functional motifs and synthetic precursors. Visible light-induced borylation may provide access to structurally diverse boronates, but a broadly efficient photocatalytic borylation method that can effect borylation of a wide range of substrates, including strong C-O bonds, remains elusive. Herein, we report a general, metal-free visible light-induced photocatalytic borylation platform that enables borylation of electron-rich derivatives of phenols and anilines, chloroarenes, as well as other haloarenes. The reaction exhibits excellent functional group tolerance, as demonstrated by the borylation of a range of structurally complex substrates. Remarkably, the reaction is catalyzed by phenothiazine, a simple organic photocatalyst with MW 200 that mediates the previously unachievable visible light-induced single electron reduction of phenol derivatives with reduction potentials as negative as approximately - 3 V versus SCE by a proton-coupled electron transfer mechanism. Mechanistic studies point to the crucial role of the photocatalyst-base interaction.
Transition metal complex, polymer, mixture, composition and organic electronic device
-
Paragraph 0217-0220; 0336-0339, (2020/05/01)
The invention discloses a transition metal complex, a polymer, a mixture, a composition and an organic electronic device. The transition metal complex has a structural general formula represented by achemical formula (1), and is simple to synthesize, novel in structure, relatively good in stability, long in service life and good in light emitting performance; the compound represented by the chemical formula (1) is convenient for realizing an efficient, high-brightness and high-stability OLED device, and a relatively good material option is provided for full-color display and illumination application.
A Monophosphine Ligand Derived from Anthracene Photodimer: Synthetic Applications for Palladium-Catalyzed Coupling Reactions
Wang, Xin,Liu, Wei-Gang,Tung, Chen-Ho,Wu, Li-Zhu,Cong, Huan
supporting information, p. 8158 - 8163 (2019/09/07)
Herein, we present an air-stable dianthracenyl monophosphine ligand (diAnthPhos) which can be prepared in two steps from commercially available anthracene derivatives. The ligand exhibits excellent efficiency for palladium-catalyzed coupling reactions. In particular, Miyaura borylation of heterocycle-containing electrophiles can be facilitated employing the diAnthPhos ligand with a broad substrate scope and low catalyst loading. The valuable synthetic utility of the new ligand is further demonstrated by a one-pot Miyaura borylation/Suzuki coupling protocol for heteroaryl-containing substrates.
2-MORPHOLIN-4,6-DISUBSTITUTED PYRIMIDINE DERIVATIVE, AND PREPARATION METHOD AND PHARMACEUTICAL USE THEREOF
-
Paragraph 0093; 0100-0101, (2017/11/11)
Disclosed is a 2-morpholin-4,6-disubstituted pyrimidine derivative as shown in formula (I) below, and a pharmaceutically acceptable salt, solvate, stereoisomer or prodrug thereof, and a pharmaceutical composition thereof and a use thereof, wherein the definition of each group is as shown in the description. The compound has a PI3K kinase inhibition activity, and has a relatively high inhibitive ability and a low cytotoxicity against PIK3CA mutant breast cancer cell strains T47D and MCF-7.
Early Development Scale-Up of a Structurally-Challenging 5-Lipoxygenase Activating Protein (FLAP) Inhibitor
Mulder, Jason A.,Gao, Joe,Fandrick, Keith R.,Zeng, Xingzhong,Desrosiers, Jean-Nicolas,Patel, Nitinchandra D.,Li, Zhibin,Rodriguez, Sonia,Lorenz, Jon C.,Wang, Jun,Ma, Shengli,Fandrick, Daniel R.,Grinberg, Nelu,Lee, Heewon,Bosanac, Todd,Takahashi, Hidenori,Chen, Zhidong,Bartolozzi, Alessandra,Nemoto, Peter,Busacca, Carl A.,Song, Jinhua J.,Yee, Nathan K.,Mahaney, Paige E.,Senanayake, Chris H.
, p. 1427 - 1434 (2017/09/22)
A practical and efficient synthesis of the FLAP inhibitor 1 was developed addressing multiple scale-up and safety concerns posed by the established synthesis and utilized a resolution strategy (replacing supercritical fluid chromatography (SFC) separation) for expedient access to the key structural component of 1: the challenging chiral quaternary center. Also highlighted are in situ IR monitoring, condensation to form the 1,2,4-oxadiazole ring, and an efficient Suzuki-Miyaura coupling.
Synthesis method of 2-aminopyrimidine-5-boronic acid pinacol ester borate
-
Paragraph 0010-0016, (2017/08/28)
The invention belongs to the field of organic synthesis, and particularly relates to a synthesis method of 2-aminopyrimidine-5-boronic acid pinacol ester borate. The synthesis method comprises the following steps: carrying out continuous reaction at the temperature of 50 to 125 DEG C for 3 to 8 hours on 2-amino-5-bromopyrimidine and bisdiboron which serve as raw materials in a proper solvent under the action of specific alkaline potassium acetate and 1,1'-dis(diphenylphosphine) ferrocene] palladium dichloride dichloromethane complex serving as a specific catalyst to generate a 2-aminopyrimidine-5-boronic acid pinacol ester borate coarse product, wherein the amount ratio of the 2-amino-5-bromopyrimidine to the bisdiboron is 1 to (0.95 to 2.1), and the amount ratio of the 2-amino-5-bromopyrimidine to the solvent is 1 to (4.0 to 30); carrying out recrystallization to obtain a 2-aminopyrimidine-5-boronic acid pinacol ester borate pure product. According to the synthesis method, the raw material is relatively easy to obtain, and the operation is easy; the specific alkali and the specific catalyst accelerate the reaction progress and shortens the reaction time; the reaction yield is high, and the purity is high.
BENZODIAZEPINES AS BROMODOMAIN INHIBITORS
-
Page/Page column 69, (2017/02/28)
The present invention provides novel benzodiazepine derivatives of Formula I or pharmaceutically acceptable derivatives, polymorphs, salts or prodrugs thereof. Said compounds have potential as bromodomain (BRD) inhibitors.
Preparation of 2-amino-pyrimidine-5-boronic acid frequency that ester method
-
Paragraph 0019, (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.
