N-Phenacyl- and N-acetonyl-isatins can be prepared and converted by treatment with sodium hydroxide into 2-acylindoles and/or 2-acyl indole-3-carboxylic acids.
N-Heterocyclic carbene catalyzed desymmetrization of diols: access to enantioenriched oxindoles having a C3-quaternary stereocenter
作者:Sourav Dutta、Arka Porey、Joyram Guin
DOI:10.1039/d3cc00489a
日期:——
Herein, we describe an effective strategy for enantioselective synthesis of oxindoles having a C3-quaternary stereocenter via N-heterocyclic carbene (NHC) catalyzed desymmetrization of diols. The process is based on the catalytic asymmetric transfer acylation of primary alcohols using readily available aldehydes as an acylation agent. The reaction enables easy access to diversely functionalized C3-quaternary
Synthesis of 2-acylindoles from ?-(N-isatinyl) ketones
作者:V. I. Gorgos、L. M. Zorin、G. I. Zhungietu、M. A. Rekhter
DOI:10.1007/bf00515352
日期:1983.11
Therapeutic investigations of novel indoxyl-based indolines: A drug target validation and Structure-Activity Relationship of angiotensin-converting enzyme inhibitors with cardiovascular regulation and thrombolytic potential
A family of 12 members of Naphthalene-2-ol-indolin-2-one-thiocarbamides (5a-1) with pharmacological potentials of cardiovascular modulator were efficiently synthesized and evaluated. These compounds show inhibitory activity on angiotensin-converting enzyme (ACE), which is a principal constituent of the renin angiotensin system and causative source for hypertension (HTN) (elevated blood pressure) and congestive heart failure (CHF), a parameter that was tested in this report. Prior to this, to get more insight into the binding mode and inhibition of human ACE C-domain (PDB ID: 2XY9) and N-domain (PDB ID: 3NXQ) compounds 5a-1 was docked into the active site of them. The established inhibitory constant (Ki) (range 40-500 nM) and least binding affinities (-18.52 to 30.57 kcal/mol) indicated the therapeutic selectivity of compounds 5a-1 towards ACE C-domain inhibition over ACE N-domain. The cytotoxicity effect of most potent compounds among 5a-1 were tested in normal breast cells and MCF-7 cell lines. Simultaneously, H2O2 induced antioxidant and DNA damage assessment was executed. Eventually, a thrombolytic activity followed by a human red blood cell (HRBC) membrane stabilization study to ensure the relaxation of blood and stabilization of RBC was executed. Structure-Activity Relationship (SAR) study discloses the potential of 5c, 5h, and 5k as cardiovascular protective therapeutic agents among 5a-1. (C) 2017 Elsevier Masson SAS. All rights reserved.
BLACK D. S. C.; WONG L. C. H., J. CHEM. SOC. CHEM. COMMUN., 1980, NO 4, 200