1016258-66-4Relevant academic research and scientific papers
Protein Modification at Tyrosine with Iminoxyl Radicals
Ishiyama, Takashi,Kanai, Motomu,Maruyama, Katsuya,Oisaki, Kounosuke,Sakai, Kentaro,Seki, Yohei,Togo, Takaya
supporting information, p. 19844 - 19855 (2021/11/30)
Post-translational modifications (PTMs) of proteins are a biological mechanism for reversibly controlling protein function. Synthetic protein modifications (SPMs) at specific canonical amino acids can mimic PTMs. However, reversible SPMs at hydrophobic amino acid residues in proteins are especially limited. Here, we report a tyrosine (Tyr)-selective SPM utilizing persistent iminoxyl radicals, which are readily generated from sterically hindered oximes via single-electron oxidation. The reactivity of iminoxyl radicals with Tyr was dependent on the steric and electronic demands of oximes; isopropyl methyl piperidinium oxime 1f formed stable adducts, whereas the reaction of tert-butyl methyl piperidinium oxime 1o was reversible. The difference in reversibility between 1f and 1o, differentiated only by one methyl group, is due to the stability of iminoxyl radicals, which is partly dictated by the bond dissociation energy of oxime O-H groups. The Tyr-selective modifications with 1f and 1o proceeded under physiologically relevant, mild conditions. Specifically, the stable Tyr-modification with 1f introduced functional small molecules, including an azobenzene photoswitch, to proteins. Moreover, masking critical Tyr residues by SPM with 1o, and subsequent deconjugation triggered by the treatment with a thiol, enabled on-demand control of protein functions. We applied this reversible Tyr modification with 1o to alter an enzymatic activity and the binding affinity of a monoclonal antibody with an antigen upon modification/deconjugation. The on-demand ON/OFF switch of protein functions through Tyr-selective and reversible covalent-bond formation will provide unique opportunities in biological research and therapeutics.
QUINAZOLINE COMPOUND FOR EGFR INHIBITION
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Paragraph 0136; 0141, (2019/11/21)
Disclosed is a novel quinazoline compound. Specifically, disclosed are a compound represented by the formula (I) and a pharmacologically acceptable salt.
SUBSTITUTED BENZAMIDES AND METHODS OF USE THEREOF
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Paragraph 0281; 0282; 0283, (2016/12/12)
The invention provides compounds having activity as sodium channel (e.g., NaV1.7) inhibitors that are useful for treating sodium channel-mediated diseases or conditions, such as pain, as well as other diseases and conditions associated with the mediation of sodium channels, and compositions containing such compounds and methods for using such compounds and compositions.
SERINE/THREONINE KINASE INHIBITORS
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, (2015/02/19)
Compounds having the formula I wherein R1, R2, R3, R4, R5, Ra, Rb, Rc, Rd, Re, n, r, s and t are as defined herein and which compounds are inhibitors of PAK1. Also disclosed are compositions and methods for treating cancer and hyperproliferative disorders.
SUBSTITUTED BENZAMIDES AND METHODS OF USE THEREOF
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Page/Page column 708, (2015/06/11)
The invention provides compounds having the general formula I, and pharmaceutically acceptable salts thereof, wherein the variables RA, RAA, subscript n, ring A, X2, L, subscript m, X1, R1, R2, R3, R4, R5, and RN have the meaning as described herein, and compositions containing such compounds and methods for using such compounds and compositions.
Discovery of N-[[1-[2-(tert-butylcarbamoylamino)ethyl]-4-(hydroxymethyl)-4- piperidyl]methyl]-3,5-dichloro-benzamide as a selective T-type calcium channel (Cav3.2) inhibitor
Giordanetto, Fabrizio,W?llberg, Andreas,Knerr, Laurent,Selmi, Nidhal,Ullah, Victoria,Thorstensson, Fredrik,Lindelo, Asa,Karlsson, Staffan,Nikitidis, Grigorios,Llinas, Antonio,Wang, Qing-Dong,Lindqvist, Anders,H?gberg, ?got,Lindhardt, Emma,Astrand, Annika,Duker, G?ran
, p. 119 - 124 (2013/02/25)
The T-type calcium channel inhibitor Mibefradil was reported to protect the heart from atrial remodeling, a key process involved in the development of atrial fibrillation and arrhythmias. Mibefradil is not a selective T-type calcium channel inhibitor and also affects the function of different ion channels. Our aim was to develop a selective T-type calcium channel inhibitor to validate the importance of T-type-related pharmacology in atrial fibrillation. Structural optimisation of a previously disclosed hit series focussed on minimising exposure to the central nervous system and improving pharmacokinetic properties, while maintain adequate potency and selectivity. This resulted in the design of N-[[1-[2-(tert-butylcarbamoylamino)ethyl]-4-(hydroxymethyl)-4- piperidyl]methyl]-3,5-dichloro-benzamide, a novel, selective, peripherally restricted chemical probe to verify the role of T-type calcium channel inhibition on atrial fibrillation protection.
ANTIBACTERIAL COMPOUNDS
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Page/Page column 32, (2012/04/18)
The present invention provides a compound of the following formula and salts thereof: Also provided is the use of these compounds as antibacterials, compositions comprising them and processes for their manufacture.
Synthesis and biological evaluation of 4-piperidinecarboxylate and 4-piperidinecyanide derivatives for T-type calcium channel blockers
Woo, Hyun Min,Lee, Yun Suk,Roh, Eun Joo,Seo, Seon Hee,Song, Chi Man,Chung, Hye Jin,Pae, Ae Nim,Shin, Kye Jung
, p. 5910 - 5915 (2011/10/09)
To obtain selective and potent inhibitor for T-type calcium channel by ligand based drug design, 4-piperidinecarboxylate and 4-piperidinecyanide derivatives were prepared and evaluated for in vitro and in vivo activity against α1G calcium channel. Among them, several compounds showed good T-type calcium channel inhibitory activity and minimal off-target activity over hERG channel (% inhibition at 10 μM = 61.85-71.99, hERG channel IC50 = 1.57 ± 0.14-4.98 ± 0.36 μM). Selected compound 31a was evaluated on SNL model of neuropathic pain and showed inhibitory effect on mechanical allodynia.
PYRROLO [2,3-D] PYRIMIDIN DERIVATIVES AS PROTEIN KINASE B INHIBITORS
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Page/Page column 87-88, (2009/05/30)
The invention relates to a novel group of compounds of Formula (I) or salts thereof: wherein Y, Z1, Z2, R1, R4, R5 and n are as described in the specification, which may be useful in the treatment or prevention of a disease or medical condition mediated through protein kinase B (PKB) such as cancer. The invention also relates to pharmaceutical compositions comprising said compounds, methods of treatment of diseases mediated by PKB using said compounds and methods for preparing compounds of Formula (I)
SUBSTITUTED PIPERIDINES CONTAINING A HETEROARYLAMIDE OR HETEROARYLPHENYL MOIETY
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Page/Page column 126-127, (2008/12/06)
The invention provides compounds of the formula (I) having PKA and PKB kinase inhibiting compounds of the formula (I): GP 1 J T 2 J N 4 R N H (I) or salts, solvates, tautomers or N-oxides thereof, wherein (1) GP is a group GP1: HET 2a a Q G (HNCO)f 7 (R )x N * (GP1) (2) GP is a group GP2: 10 (R )r O 2a a QG (CH2)w N V H N * (GP2) wherein HET is a monocyclic or bicyclic heterocyclic group containing up to 4 heteroatom ring members; the ring V is a monocyclic or bicyclic heteroaryl group of 5 to 10 ring members; and J1, J2, R4, R7, R10, Q2a, Ga, x, w and f are as defined in the claims
