Antiplasmodial activity of novel keto-enamine chalcone-chloroquine based hybrid pharmacophores
摘要:
A series of novel keto-enamine chalcone-chloroquine based hybrids were synthesized following new methodology developed in our laboratory. The synthesized compounds were screened against chloroquine sensitive strain (3D7) of Plasmodium falciparum in an in vitro model. Some of the compounds were showing comparable antimalarial activity at par with chloroquine. Compounds with significant in vitro antimalarial activity were then evaluated for their in vivo efficacy in Swiss mice against Plasmodium yoelii (chloroquine resistant N-67 strain), wherein compounds 25 and 27 each showed an in vivo suppression of 99.9% parasitaemia on day 4. Biochemical studies reveal that inhibition of hemozoin formation is the primary mechanism of action of these analogues. (C) 2012 Elsevier Ltd. All rights reserved.
In vitro and in vivo antifilarial activity evaluation of 3,6-epoxy [1,5]dioxocines: A new class of antifilarial agents
摘要:
A series of 3,6-epoxy [1,5] dioxocines were synthesized and evaluated for their antifilarial activity against adult parasites of human lymphatic filarial parasite Brugia malayi (sub-periodic strain) in vitro. Out of these, six compounds (4a-f) possessed improved in vitro anti-filarial activity and examples 4d and 4f were also found to be active in the in vivo experiments. These results demonstrate that 3,6-epoxy [1,5] dioxocines exhibits potent antifilarial activity and might be developed into a new class of antifilarial drug. (C) 2012 Elsevier Ltd. All rights reserved.
[EN] COUMARIN-CHALCONES AS ANTICANCER AGENTS<br/>[FR] COUMARINE-CHALCONES EN TANT QU'AGENTS ANTICANCÉREUX
申请人:COUNCIL SCIENT IND RES
公开号:WO2012017454A1
公开(公告)日:2012-02-09
The present invention relates to certain coumarin/chalcone compounds or a pharmaceutically acceptable salt thereof. The present invention particularly relates to the coumarin/chalcone compounds as anticancer agents useful for the treatment of cancer. The present invention also relates to the process of preparation of the said compounds.
The present invention relates to certain coumarin/chalcone compounds or a pharmaceutically acceptable salt thereof. The present invention particularly relates to the coumarin/chalcone compounds as anticancer agents useful for the treatment of cancer. The present invention also relates to the process of preparation of the said compounds.
Synthesis and in vitro evaluation of novel coumarin–chalcone hybrids as potential anticancer agents
作者:Koneni V. Sashidhara、Abdhesh Kumar、Manoj Kumar、Jayanta Sarkar、Sudhir Sinha
DOI:10.1016/j.bmcl.2010.10.116
日期:2010.12
A series of coumarin-chalcone hybrids have been synthesized and evaluated for their in vitro cytotoxicity against a panel of four human cancer cell lines and normal fibroblasts (NIH3T3). Among 21 compounds screened, three compounds (23, 25 and 26) showed IC50 range from 3.59 to 8.12 mu M. The most promising compound 26 showed around 30-fold more selectivity towards C33A (cervical carcinoma) cells over normal fibroblast NIH3T3 cells with an IC50 value of 3.59 mu M. (C) 2010 Elsevier Ltd. All rights reserved.
US8815940B2
申请人:——
公开号:US8815940B2
公开(公告)日:2014-08-26
In vitro and in vivo antifilarial activity evaluation of 3,6-epoxy [1,5]dioxocines: A new class of antifilarial agents
作者:Koneni V. Sashidhara、Abdhesh Kumar、K. Bhaskara Rao、Vikas Kushwaha、Kirti Saxena、P.K. Murthy
DOI:10.1016/j.bmcl.2012.01.009
日期:2012.2
A series of 3,6-epoxy [1,5] dioxocines were synthesized and evaluated for their antifilarial activity against adult parasites of human lymphatic filarial parasite Brugia malayi (sub-periodic strain) in vitro. Out of these, six compounds (4a-f) possessed improved in vitro anti-filarial activity and examples 4d and 4f were also found to be active in the in vivo experiments. These results demonstrate that 3,6-epoxy [1,5] dioxocines exhibits potent antifilarial activity and might be developed into a new class of antifilarial drug. (C) 2012 Elsevier Ltd. All rights reserved.