Palladium-Catalyzed Dynamic Kinetic Asymmetric Transformations of Vinyl Aziridines with Nitrogen Heterocycles: Rapid Access to Biologically Active Pyrroles and Indoles
作者:Barry M. Trost、Maksim Osipov、Guangbin Dong
DOI:10.1021/ja1071509
日期:2010.11.10
heterocycles can serve as competent nucleophiles in the palladium-catalyzed dynamic kinetic asymmetric alkylation of vinyl aziridines. The resulting alkylated products were obtained with high regio-, chemo-, and enantioselectivity. Both substituted 1H-pyrroles and 1H-indoles were successfully employed to give exclusively the branched N-alkylated products. The synthetic utility of this process was demonstrated
我们报告说,氮杂环可以在钯催化的乙烯基氮丙啶动态动力学不对称烷基化中作为有能力的亲核试剂。得到的烷基化产物具有高区域选择性、化学选择性和对映选择性。取代的 1H-吡咯和 1H-吲哚都被成功地用于得到支化的 N-烷基化产物。通过将该方法应用于制备几种药物化学先导化合物和溴吡咯生物碱,包括 longamide B、longamide B 甲酯、hanishin、agesamides A 和 B 以及环碘酮,证明了该方法的合成效用。
Discovery and characterization of a novel series of N -phenylsulfonyl-1 H -pyrrole picolinamides as positive allosteric modulators of the metabotropic glutamate receptor 4 (mGlu 4 )
作者:Rocco D. Gogliotti、Anna L. Blobaum、Ryan M. Morrison、J. Scott Daniels、James M. Salovich、Yiu-Yin Cheung、Alice L. Rodriguez、Matthew T. Loch、P. Jeffrey Conn、Craig W. Lindsley、Colleen M. Niswender、Corey R. Hopkins
DOI:10.1016/j.bmcl.2016.05.029
日期:2016.7
Herein we report the synthesis and characterization of a novel series of N-phenylsulfonyl-1H-pyrrole picolinamides as novel positiveallostericmodulators of mGlu4. We detail our work towards finding phenyl replacements for the core scaffold of previously reported phenyl sulfonamides and phenyl sulfone compounds. Our efforts culminated in the identification of N-(1-((3,4-dimethylphenyl)sulfonyl)-1
Nitroazole Universal Bases in Peptide Nucleic Acids
作者:Hemavathi Challa、Melanie L. Styers、Stephen A. Woski
DOI:10.1021/ol990270q
日期:1999.11.1
properties of these PNAs with complementaryoligodeoxynucleotides were evaluated by thermal denaturation experiments. Both novel residues exhibited little variation in Tm (< or = 1.5 degrees C) when positioned against any of the four nucleoside bases. The capability to incorporate degenerate sites should further expand the utility of PNA in applications where precise sequence information is not available
Identification, structure modification, and characterization of potential small-molecule SGK3 inhibitors with novel scaffolds
作者:Grace Qun Gong、Ke Wang、Xin-Chuan Dai、Yan Zhou、Rajesh Basnet、Yi Chen、De-Hua Yang、Woo-Jeong Lee、Christina Maree Buchanan、Jack Urquhart Flanagan、Peter Robin Shepherd、Ying Chen、Ming-Wei Wang
DOI:10.1038/s41401-018-0087-6
日期:2018.12
plays a crucial role in PI3K-mediated tumorigenesis, making it a potential therapeutic target for cancer. SGK family consists of three isoforms (SGK1, SGK2, and SGK3), which have high sequence homology in the kinase domain and similar substrate specificity with the AKT family. In order to identify novel compounds capable of inhibiting SGK3 activity, a high-throughput screening campaign against 50,400
[EN] DERIVATIVES OF QUINOLINES AND QUINOXALINES AS PROTEIN TYROSINE KINASE INHIBITORS<br/>[FR] DÉRIVÉS DE QUINOLÉINES ET DE QUINOXALINES EN TANT QU'INHIBITEURS DE PROTÉINE TYROSINE KINASES
申请人:NOVARTIS AG
公开号:WO2009141386A1
公开(公告)日:2009-11-26
The invention relates to compounds of Formula (I), wherein the substituens are as defined in the specification, in free form or in the form of a pharmaceutically acceptable salt, solvate, ester, N-oxide thereof; processes for the preparation thereof; to pharmaceuticals containing such compounds, in particular for the use in one or more Protein tyrosine kinase mediated diseases.