Structure-Based Design and Synthesis of Novel Inhibitors Targeting HDAC8 from Schistosoma mansoni for the Treatment of Schistosomiasis
摘要:
Schistosomiasis is a major neglected parasitic disease that affects more than 265 million people worldwide and for which the control strategy consists of mass treatment with the only available drug, praziquantel. In this study, a series of new benzohydroxamates were prepared as potent inhibitors of Schistosoma mansoni histone deacetylase 8 (smHDAC8). Crystallographic analysis provided insights into the: inhibition mode of smHDAC8 activity by these 3-amidobenzohydroxamates. The newly designed inhibitors were evaluated in screens for enzyme inhibitory activity against schistosome and human HDACs. Twenty-seven compounds were found to be active in the nanomolar range, and some of them showed selectivity toward smHDAC8 over the major human HDACs (I and 6). The active benzohydroxamates were additionally screened for lethality against the schistosome larval stage using a fluorescence-based assay. Four of these showed significant dose-dependent killing of the schistosome larvae and markedly impaired egg laying of adult worm pairs maintained in culture.
COMPOUNDS, COMPOSITIONS AND METHODS FOR TREATING OR PREVENTING PNEUMOVIRUS INFECTION AND ASSOCIATED DISEASES
申请人:Nitz Theodore J.
公开号:US20120183498A1
公开(公告)日:2012-07-19
Compounds, compositions and methods are provided for the prophylaxis and treatment of infections caused by viruses of the Pneumovirinae subfamily of Paramyxoviridae and diseases associated with such infection.
A process for the production of aminophthalides and amino benzoic acids
申请人:STERLING DRUG INC.
公开号:EP0082394A2
公开(公告)日:1983-06-29
Process comprises the combination of the two steps of condensing Y-benzaldehyde with NR2R3-aniline and 3-NRR1- benzoic acid, under acidic conditions to produce 2-[Y-phenyl) (4-NR2R3-aminophenyl)methyl]-5-NRR1-aminobenzoic acid, and oxidizing said benzoic acid to produce 3-(Y-phenyl)-3-(4-NR2R3-aminophenyl)-6-NRR1-aminophthalide.