Dimethylamine substitution in N , N -dimethyl enamines. Synthesis of aplysinopsin analogues and 3-aminotetrahydrocoumarin derivatives
作者:Lovro Selič、Branko Stanovnik
DOI:10.1016/s0040-4020(01)00174-0
日期:2001.4
Some new six-membered aplysinopsin analogues were prepared from 5-dimethylaminomethylidene-2,4,6(1H,3H,5H)-pyrimidinetriones and indole derivatives. Also 2-[[(2,4,6-trioxohexahydropyrimidin-5-ylidene)methyl]amino]-3-dimethylaminopropenoates were synthesized and employed in the synthesis of fused 2H-pyran-2-ones.
A simple method for knoevenagel condensation of α,β-conjugated and aromatic aldehydes with barbituric acid
作者:Branko S. Jursic
DOI:10.1002/jhet.5570380318
日期:2001.5
Several aromatic and α,β-conjugated aromaticaldehydes were condensed with barbituric acid in methanol solution in the absence of acid or base as a catalyst, affording 5-ylidenebarbituric acidderivatives in almost quantitative yields.
Facile Synthesis and Biological Evaluation of Substituted 5-(1H-Indol-3-ylmethylene) pyrimidine-2,4,6-trione Derivatives Using L-Tyrosine in Aqueous Medium
作者:G. Thirupathi、P.K. Dubey、Y. Bharathi Kumari
DOI:10.14233/ajchem.2013.15364
日期:——
L-Tyrosine as an efficient catalyst for the Knoevenagel condensation of substituted indole-3-aldehydes 1(a-d), N-methyl indole-3-aldehydes 4(a-d), N-ethyl indole-3-aldehydes 6(a-d) with barbituric acid (2) containing cyclic active methylene group to produce 3(a-d), 5(a-d) and 7(a-d), respectively in water at room temperature for 10 min. The antimicrobial activities of 3(a-d), 5(a-d) and 7(a-d) have been studied.
Presently provided are methods for (a) modulating an activity of indoleamine 2,3-dioxygenase comprising contacting an indoleamine 2,3-dioxygenase with a modulation effective amount of a compound as described in one of the aspects described herein; (b) treating indoleamine 2,3-dioxygenase (IDO) mediated immunosuppression in a subject in need thereof, comprising administering an effective indoleamine 2,3-dioxygenase inhibiting amount of a compound as described in one of the aspects described herein; (c) treating a medical conditions that benefit from the inhibition of enzymatic activity of indoleamine-2,3-dioxygenase comprising administering an effective indoleamine 2,3-dioxygenase inhibiting amount of a compound as described in one of the aspects described herein; (d) enhancing the effectiveness of an anti-cancer treatment comprising administering an anti-cancer agent and a compound as described in one of the aspects described herein; (e) treating tumor-specific immunosuppression associated with cancer comprising administering an effective indoleamine 2,3-dioxygenase inhibiting amount of a compound as described in one of the aspects described herein; and (f) treating immunosuppression associated with an infectious disease, e.g., HIV-I infection, comprising administering an effective indoleamine 2,3-dioxygenase inhibiting amount a compound as described in one of the aspects described herein.
Design, synthesis and anticancer activities of hybrids of indole and barbituric acids—Identification of highly promising leads
作者:Palwinder Singh、Matinder Kaur、Pooja Verma
DOI:10.1016/j.bmcl.2009.04.014
日期:2009.6
By combining the structural features of indole and barbituric acid, new hybrid molecules were designed and synthesized. Evaluations of these molecules over 60 cell line panel of human cancer cells have identified two molecules with significant anticancer activities. Dockings of two active molecules in the active sites of COX-2, thymidylate synthase and ribonucleotide reductase indicate their strong interactions with these enzymes. (C) 2009 Elsevier Ltd. All rights reserved.