374818-66-3Relevant articles and documents
One-pot access to L-5,6-dihalotryptophans and L-alknyltryptophans using tryptophan synthase
Corr, Michael J.,Smith, Duncan R.M.,Goss, Rebecca J.M.
, p. 7306 - 7310 (2016)
We report, for the first time, the use of tryptophan synthase in the generation of L-dihalotryptophans and L-alkynyltryptophans. These previously unpublished compounds will be useful tools in the generation of probes for chemical biology, in biosynthetic diversification and as convenient building blocks for synthesis.
Mono-selective β-C-H arylation of: N -methylated amino acids and peptides promoted by the 2-(methylthio)aniline directing group
Kinsinger, Thorsten,Kazmaier, Uli
supporting information, p. 5595 - 5600 (2019/06/13)
2-(Methylthio)aniline (MTA) directed C(sp3)-H functionalisations are efficient and straightforward protocols for the selective β-modification of N-methylated amino acids. The decreased reactivity of MTA in comparison with the 8-aminoquinoline (AQ) directing group allows for selective monoarylations in high yields without the formation of side products. The protocol is also suitable for the introduction of highly functionalised side chains onto the C-terminal alanines of dipeptides. The MTA directing group can easily be removed, providing free carboxylic acids as valuable building blocks.
Rapid Syntheses of Heteroaryl-Substituted Imidazo[1,5-a]indole and Pyrrolo[1,2-c]imidazole via Aerobic C2-H Functionalizations
Kong, Wei-Jun,Chen, Xingrong,Wang, Mingming,Dai, Hui-Xiong,Yu, Jin-Quan
supporting information, p. 284 - 287 (2018/01/17)
Here we report an aerobic Pd(0) catalyzed C2-H functionalization of indoles and pyrroles with tethered N-methoxylamide as the directing group. A Pd(0)-initiated mechanism overcomes the directing or poisoning effect from a wide range of heterocycles including pyridine, pyrimidine, and thiazole. The imidazo[1,5-a]indole products are transformed to bioactive analogs after one-step manipulations, demonstrating the potential utility of this reaction in drug discovery.
Branch-Selective Hydroarylation: Iodoarene-Olefin Cross-Coupling
Green, Samantha A.,Matos, Jeishla L. M.,Yagi, Akiko,Shenvi, Ryan A.
supporting information, p. 12779 - 12782 (2016/10/13)
A combination of cobalt and nickel catalytic cycles enables a highly branch-selective (Markovnikov) olefin hydroarylation. Radical cyclization and ring scission experiments are consistent with hydrogen atom transfer (HAT) generation of a carbon-centered radical that leads to engagement of a nickel cycle.
Palladium-catalysed aminosulfonylation of aryl-, alkenyl- and heteroaryl halides: Scope of the three-component synthesis of N-aminosulfonamides
Emmett, Edward J.,Richards-Taylor, Charlotte S.,Nguyen, Bao,Garcia-Rubia, Alfonso,Hayter, Barry R.,Willis, Michael C.
supporting information; experimental part, p. 4007 - 4014 (2012/06/04)
By using DABCO·(SO2)2, DABSO, as a solid bench-stable SO2-equivalent, the palladium-catalysed aminosulfonylation of aryl-, alkenyl- and heteroaryl halides has been achieved. N,N-Dialkylhydrazines are employed as the N-nucleophiles and provide N-aminosulfonamides as the products in good to excellent yields. The reactions are operationally simple to perform, requiring only a slight excess of SO 2 (1.2-2.2 equiv.), and tolerate a variety of substituents on the halide coupling partner. Variation of the hydrazine component is also demonstrated. The use of N,N-dibenzylhydrazine as the N-nucleophile delivers N-aminosulfonamide products that can be converted into the corresponding primary sulfonamides using a high-yielding, telescoped, deprotection sequence. The ability to employ hydrazine·SO2 complexes as both the N-nucleophile and SO2 source is also illustrated.
JAK INHIBITOR
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Page/Page column 86, (2009/10/21)
A JAK inhibitor comprising, as an active ingredient, a nitrogen-containing heterocyclic compound represented by formula (I) {wherein W represents a nitrogen atom or -CH-; X represents -C (=O) - or -CHR4- (wherein R4 represents a hydrogen atom, or the like); R1 represents the formula described below [wherein Q1 represents-CR8-(wherein R8 represents a hydrogen atom, substituted or unsubstituted lower alkyl, or the like); Q2 represents -NR15- (wherein R15 represents a hydrogen atom, substituted or unsubstituted lower alkyl, or the like); and R5 and R6 may be the same or different and each represents a hydrogen atom, halogen, carboxy, substituted or unsubstituted lower alkyl, or the like], or the like; and R2 and R3 may be the same or different and each represents a hydrogen atom, halogen, substituted or unsubstituted lower alkyl, or the like} or a pharmaceutically acceptable salt thereof.
ANTI-VIRAL COMPOUNDS
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Page/Page column 100, (2008/12/08)
Compounds effective in inhibiting replication of Hepatitis C virus ( HCV ) or other viruses are disclosed. This invention is also directed to compositions comprising such compounds, coformulation or co-administration of such compounds with other anti-viral or therapeutic agents, processes and intermediates for the syntheses of such compounds, and methods of using such compounds for the treatment of HCV or other viral infections.
Synthesis and evaluation of indolinyl- and indolylphenylacetylenes as PET imaging agents for β-amyloid plaques
Qu, Wenchao,Choi, Seok-Rye,Hou, Catherine,Zhuang, Zhiping,Oya, Shunichi,Zhang, Wei,Kung, Mei-Ping,Manchandra, Rajesh,Skovronsky, Daniel M.,Kung, Hank F.
body text, p. 4823 - 4827 (2009/05/30)
Two new phenylacetylene derivatives, 5-((4-(2-(2-(2-fluoroethoxy)ethoxy)ethoxy)phenyl)ethynyl)indoline 8 and 5-((4-(2-(2-(2-fluoroethoxy)ethoxy)ethoxy)phenyl)ethynyl)-1H-indole 14, targeting β-amyloid (Aβ) plaques have been prepared. In vitro binding carr
ANTI-VIRAL COMPOUNDS
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Page/Page column 122, (2010/11/27)
Compounds effective in inhibiting replication of Hepatitis C virus ("HCV") or other viruses are disclosed. This invention is also directed to compositions comprising such compounds, co-formulation or co-administration of such compounds with other anti-viral or therapeutic agents, processes and intermediates for the syntheses of such compounds, and methods of using such compounds for the treatment of HCV or other viral infections.
Neuroprotective and anti-proliferative compounds
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, (2008/06/13)
This invention features ring-substituted pyrrolo-β-carboline derivatives and ring-substitution and structural derivatives of 3-(1H-indol-3-yl)-1H-pyrrole-2,5-dione of formulas (I-III), which are useful as neuroprotective and anti-proliferative compounds. Also disclosed are methods for the preparation of these compounds, selected biological profiles and uses of these compounds in the treatment of various neurodegenerative and inflammatory diseases of the human nervous system and in the treatment of various other proliferative disorders characterized by loss of growth or cellular differentiation control including, but not limited to, cancer and inflammation.