757192-64-6Relevant academic research and scientific papers
Metal-Free Etherification of Aryl Methyl Ether Derivatives by C-OMe Bond Cleavage
Wang, Xueqiang,Li, Chenchen,Wang, Xia,Wang, Qingli,Dong, Xiu-Qin,Duan, Abing,Zhao, Wanxiang
, p. 4267 - 4272 (2018)
A general and efficient protocol was developed for the synthesis of aryl alkyl ethers through metal-free C-OMe bond cleavage under mild reaction conditions. This process displays a wide scope of methoxyarenes and alcohols, including primary, secondary, and tertiary alcohols, as well as natural products, pharmaceuticals, and biologically active alcohols. DFT calculations and experimental results simultaneously confirm that a potassium ion plays a critical role in the activation of methoxy group via binding with the nitrile and provide support for an SNAr mechanism.
Discovery of Potent and Selective Inhibitors for G9a-Like Protein (GLP) Lysine Methyltransferase
Xiong, Yan,Li, Fengling,Babault, Nicolas,Dong, Aiping,Zeng, Hong,Wu, Hong,Chen, Xin,Arrowsmith, Cheryl H.,Brown, Peter J.,Liu, Jing,Vedadi, Masoud,Jin, Jian
, p. 1876 - 1891 (2017/03/17)
G9a-like protein (GLP) and G9a are highly homologous protein lysine methyltransferases (PKMTs) sharing approximately 80% sequence identity in their catalytic domains. GLP and G9a form a heterodimer complex and catalyze mono- and dimethylation of histone H3 lysine 9 and nonhistone substrates. Although they are closely related, GLP and G9a possess distinct physiological and pathophysiological functions. Thus, GLP or G9a selective small-molecule inhibitors are useful tools to dissect their distinct biological functions. We previously reported potent and selective G9a/GLP dual inhibitors including UNC0638 and UNC0642. Here we report the discovery of potent and selective GLP inhibitors including 4 (MS0124) and 18 (MS012), which are >30-fold and 140-fold selective for GLP over G9a and other methyltransferases, respectively. The cocrystal structures of GLP and G9a in the complex with either 4 or 18 displayed virtually identical binding modes and interactions, highlighting the challenges in structure-based design of selective inhibitors for either enzyme.
Structure-activity relationship studies of SETD8 inhibitors
Ma, Anqi,Yu, Wenyu,Xiong, Yan,Butler, Kyle V.,Brown, Peter J.,Jin, Jian
supporting information, p. 1892 - 1898 (2015/01/08)
SETD8 (also known as SET8, PR-SET7, or KMT5A (lysine methyltransferase 5A)) is the only known lysine methyltransferase that catalyzes the monomethylation of histone H4 lysine 20 (H4K20). In addition to H4K20, SETD8 monomethylates non-histone substrates such as the tumor suppressor p53 and the proliferating cell nuclear antigen (PCNA). Because of its role in regulating diverse biological processes, SETD8 has been pursued as a potential therapeutic target. We recently reported the first substrate-competitive SETD8 inhibitor, UNC0379 (1), which is selective for SETD8 over 15 other methyltransferases. We characterized this inhibitor in a battery of biochemical and biophysical assays. Here we describe our comprehensive structure-activity relationship (SAR) studies of this chemical series. In addition to 2- and 4-substituents, we extensively explored 6- and 7-substituents of the quinazoline scaffold. These SAR studies led to the discovery of several new compounds, which displayed similar potencies as compound 1 and interesting SAR trends. This journal is
SUBSTITUTED NAPHTHYRIDINES AND THEIR USE AS MEDICAMENTS
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Page/Page column 22, (2012/02/06)
The invention relates to new substituted naphthyridines of formula 1, as well as pharmacologically acceptable salts, diastereomers, enantiomers, racemates, hydrates or solvates thereof, wherein R1 is selected from among —O—R3 or —NR3R4,R3 is C1-6-alkyl which is substituted by R5 and R6,R5 is selected from hydrogen, branched or linear C1-6-alkyl, C2-6-alkenyl, —C1-6-alkylen-O—C1-3-alkyl, C1-3-haloalkyl,R6 is ring X wherein n is either 0 or 1, and is a either a single or a double bond andwherein A, B, D and E are each independently from one another selected from CH2, CH, C, N, NH, O or S and wherein ring X is attached to the molecule either via position A, B, D or E, wherein said ring X may optionally be further substituted by one, two or three residues each selected individually from the group consisting of -oxo, hydroxy, —C1-3-alkyl, —C1-3-haloalkyl, —O—C1-3-alkyl, —C1-3-alkanol and halogen,and wherein R4, R2, R7, R8, R9, R10, R11 and Q may have the meanings as given in claim 1, as well as pharmaceutical compositions containing these compounds.
SUBSTITUTED NAPHTHYRIDINES AND THEIR USE AS SYK KINASE INHIBITORS
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Page/Page column 44, (2011/08/21)
The invention relates to new substituted naphthyridines of formula (1), as well as pharmacologically acceptable salts, diastereomers, enantiomers, racemates, hydrates or solvates thereof, wherein R1 is selected from among -O-R3 or -NR3R4, R3 is C1-6-alkyl which is substituted by R5 and R6 R5 is selected from hydrogen, branched or linear C1-6-alkyl, C2-6-alkenyl, -C1-6-alkylen-O-C1-3-alkyl, C1-3-haloalkyl, R6 is ring X wherein n is either 0 or 1, and Formula (I) is a either a single or a double bond and wherein A, B, D and E are each independently from one another selected from CH2, CH, C, N, NH, O or S and wherein ring X is attached to the molecule either via position A, B, D or E, wherein said ring X may optionally be further substituted by one, two or three residues each selected individually from the group consisting of -oxo, hydroxy, -C1-3-alkyl, -C1-3-haloalkyl, -O-C1-3-alkyl, -C1-3-alkanol and halogen, and wherein R4, R2, R7, R8, R9, R10, R11 and Q may have the meanings as given in claim 1, as well as pharmaceutical compositions containing these compounds.
