Synthesis and evaluation of indole, pyrazole, chromone and pyrimidine based conjugates for tumor growth inhibitory activities – Development of highly efficacious cytotoxic agents
作者:Palwinder Singh、Matinder Kaur、Wolfgang Holzer
DOI:10.1016/j.ejmech.2010.08.004
日期:2010.11
chromone-pyrazole, indole-pyrimidine, indole-indolinone and indole-pyrazole moieties. Evaluation of these compounds for tumor growth inhibitory activities over 60 human tumor cell lines provided highly efficacious compounds 15, 41, 43, 66, 69, and 72 with an average GI50 over all the 60 human tumor cell lines as 3.2 μM, 3.1 μM, 1.7 μM, 2.6 μM, 50.1 μM and 2.0 μM, respectively.
Reaktionen von 3-Acylchromonen mit CH-aciden Verbindungen. 35. Mitt. über Untersuchungen an 4-Pyronen
作者:F. Eiden、W. Schikorr
DOI:10.1002/ardp.19723050306
日期:——
3‐Acylchromone (5) reagieren mit CH‐aciden Verbindungen in einer „vinylogen Acyl‐Lacton‐Umlagerung”︁ je nach Reaktionsbedingungen zu 3‐Ylidenmethyl‐ oder 3‐Pyrimidopyranyl‐chromonen bzw.‐flavonen (2, 3, 4, 8 oder 9).
An Efficient Synthesis of Novel Chromone-Containing Furopyrimidines
作者:Mohammad Bagher Teimouri、Mehrdad Eskandari
DOI:10.3184/174751911x13146322603355
日期:2011.9
reaction of 1,3-disubstituted barbituric acid derivatives, 3-formylchromones and alkyl isocyanides proceed smoothly at room temperature to give the corresponding chromone-containing furopyrimidinesderivatives in good yields within 10 minutes in DMF. This three-component reaction represents a facile and efficient route to the furo[2,3-d]pyrimidine derivatives, which have become synthetic targets for many
the pyrimidine-based enaminone is integrated with the chromone through the central diene linker. Similarly, introducing pyrimidine-based enaminone into the terminal part of the chromonyl diene scaffold gave an equilibrium mixture of rotationalisomers in DMSO, which could be separated and isolated by crystallization. The computational analysis confirmed the role of barbiturate in directing the type
A green and efficient method have been developed for the synthesis of quaternary centered and spiro-barbiturate-tetrahydrothiophene hybrids via Knoevenagel condensation,1,4-thia-Michael and intramolecular Aldol reactions using "on water" concept under catalyst-free conditions. Systematic studies were carried out to find the role of the water and total reaction concentration (0.086 M) to promote the reaction in two steps (one-pot). The use of water as a reaction medium, catalyst-free conditions, broad substrate scope, one-pot approach for the creation of quaternary centered and spiro molecules are the advantages of this method. (C) 2017 Elsevier Ltd. All rights reserved.