1074-88-0Relevant academic research and scientific papers
Synthesis of N-protected/free indole-7-carboxaldehyde
Mohanakrishnan, Arasambattu K.,Balamurugan, Ramalingam,Ramesh, Neelamegam,Mathiselvam, Manoharan,Manavalan, Subramaniam
, p. 4343 - 4352 (2007)
A direct method for the preparation of N-protected/free indole-7-carboxaldehyde is reported from the corresponding N-protected 7-bromomethylindoles using three different conditions. Copyright Taylor & Francis Group, LLC.
Design of schiff base-like postmetallocene catalytic systems for polymerization of olefins: IV. Synthesis of 2-(aryliminomethyl)-pyrrole and 7-(aryliminomethyl)indole derivatives containing cycloalkyl substituents
Kochnev,Oleinik,Oleinik,Ivanchev,Tolstikov
, p. 571 - 575 (2007)
Reactions of 4,6-substituted 2-cycloalkylanilines with 1H-pyrrole-2- carbaldehyde and 1H-indole-7-carbaldehyde in methanol in the presence of formic acid gave the corresponding Schiff bases which can be used as ligands for titanium and zirconium complexes
Enantioselective N-Heterocyclic Carbene-Catalyzed Cascade Reaction for the Synthesis of Pyrroloquinolines via N-H Functionalization of Indoles
Mukherjee, Subrata,Shee, Sayan,Poisson, Thomas,Besset, Tatiana,Biju, Akkattu T.
, p. 6998 - 7002 (2018)
Functionalization of the indole N-H bond for enantioselective synthesis of biologically important pyrroloquinoline derivatives has been reported under oxidative N-heterocyclic carbene catalysis conditions. The interception of catalytically generated chiral α,β-unsaturated acylazoliums with the indole derivatives proceeds in an aza-Michael/Michael/lactonization sequence to deliver the pyrroloquinoline derivatives in good yields, diastereoselectivities, and enantioselectivities. The simultaneous enhancement of reactivity and selectivity observed in polar aprotic solvents is noteworthy.
Phosphine-Mediated Sequential [2+4]/[2+3] Annulation to Construct Pyrroloquinolines
Lin, Junhui,Zhu, Yannan,Cai, Wei,Huang, You
, p. 1593 - 1597 (2022/03/03)
A domino [2+4]/[2+3] sequential annulation reaction of MBH carbonates with N-unprotected indoles has been developed to provide various pyrroloquinoline derivatives in ≤94% yield and 20:1 dr. The reaction could be either mediated by stoichiometric PCy3 or catalyzed by R3PO via PIII/PV O redox cycling in the presence of phenylsilane. This method assembles polycyclic 1,7-fused indoles in one step diastereoselectively.
Piperidine compound and preparation method and medical application thereof
-
, (2021/04/07)
The invention discloses a piperidine compound shown as a formula (I) and a preparation method and medical application thereof, and particularly relates to a piperidine USP7 inhibitor compound or pharmaceutically acceptable salt or ester or solvate thereof and a preparation method and application of the piperidine USP7 inhibitor compound or pharmaceutically acceptable salt or ester or solvate thereof. The compound provided by the invention can inhibit the activity of USP7 enzyme, has very good selectivity and druggability, and can be used for preparing medicines for preventing or treating tumor diseases or virus infectious diseases.
Ruthenium(II)-Catalyzed Highly Chemo- And Regioselective Oxidative C6 Alkenylation of Indole-7-carboxamides
Jadhav, Pankaj P.,Kahar, Nilesh M.,Dawande, Sudam G.
, p. 8673 - 8677 (2021/11/20)
We disclosed the first efficient method for highly chemo- and regioselective C6 alkenylation of indole-7-carboxamides using inexpensive Ru(II) catalyst through chelation assisted C-H bond activation. Electronically diverse indole-7-carboxamides and alkenes react efficiently to produce a wide range of C6 alkenyl indole derivatives. Further the C6 alkenyl indole-7-carboxamides modified to their derivatives through simple chemical transformations. The observed regioselectivity and kinetics has been evidenced by deuterium incorporation and intermolecular competitive studies. In addition, for mechanistic insights, the intermediates were analyzed by HRMS.
A rhodium(ii) catalysed domino synthesis of azepino fused diindoles from isatin tethered: N -sulfonyl-1,2,3-triazoles and indoles
Kahar, Nilesh,Jadhav, Pankaj,Reddy, R. V. Ramana,Dawande, Sudam
, p. 1207 - 1210 (2020/02/04)
An efficient and convenient protocol for the synthesis of a novel class of azepino fused diindoles from isatin tethered N-sulfonyl-1,2,3-triazoles and indoles has been disclosed. The reaction proceeds via denitrogenative aza-vinyl rhodium carbene formation to give a carbonyl ylide, which with indole results in 1,3-dipolar cycloaddition followed by sequential semipinacol rearrangement/ring expansion/oxidation to produce azepino fused diindoles. The reaction shows a broad substrate scope giving up to 81% yield. Furthermore, reversible catalytic hydrogenation and photophysical studies were carried out to demonstrate the application of these molecules.
Organo-Photoredox Catalyzed Oxidative Dehydrogenation of N-Heterocycles
Sahoo, Manoj K.,Jaiswal, Garima,Rana, Jagannath,Balaraman, Ekambaram
supporting information, p. 14167 - 14172 (2017/10/16)
We report here for the first time the catalytic oxidative dehydrogenation of N-heterocycles by a visible-light organo-photoredox catalyst with low catalyst loading (0.1–1 mol %). The reaction proceeds efficiently under base- and additive-free conditions with ambient air at room temperature. The utility of this benign approach is demonstrated by the synthesis of various pharmaceutically relevant N-heteroarenes such as quinoline, quinoxaline, quinazoline, acridine, and indole.
Aminocatalyzed Cascade Synthesis of Enantioenriched 1,7-Annulated Indoles from Indole-7-Carbaldehyde Derivatives and α,β-Unsaturated Aldehydes
Giardinetti, Maxime,Moreau, Xavier,Coeffard, Vincent,Greck, Christine
, p. 3501 - 3506 (2016/01/25)
We report herein a new cascade strategy for the enantioselective synthesis of 1,7-annulated indoles based on iminium-enamine activation. A careful study of the indole substitution pattern revealed that a chloro substituent at the C-3 position was importan
5-Oxo-ETE receptor antagonists
Gore, Vivek,Patel, Pranav,Chang, Chih-Tsung,Sivendran, Sashikala,Kang, Namin,Ouedraogo, Yannick P.,Gravel, Sylvie,Powell, William S.,Rokach, Joshua
, p. 3725 - 3732 (2013/06/27)
5-Oxo-ETE is the most powerful eosinophil chemoattractant among lipid mediators. Eosinophil infiltration into the lungs of asthmatics may be responsible for the late phase of inflammatory asthma. We have designed and synthesized a 5-oxo-ETE receptor antagonist, the purpose of which is to prevent eosinophil migration to the lung during an asthma attack and thereby reduce asthma symptoms.
