New luminophores having different aryl nuclei and propynones moieties have been obtained via sonogashira reactions. Their optical properties were evaluated and indicated that carbonylgroups are responsible for significant bathochromic effects and high stokes shifts. The insertion of -ome groups on the central benzene unit gives to the fluorophore high optical efficiency when homogeneously dispersed
Synthesis and Preliminary Pharmacological Study of Thiophene Analogues of the Antipyretic and Analgesic Agent Ethenzamide
作者:V. Darias、L. Bravo、S. S. Abdallah、C. C. Sánchez Mateo、M. A. Expósito-orta、J. Lissavetsky、J. Manzanares
DOI:10.1002/ardp.19923250206
日期:——
A preliminarypharmacologicalstudy of a thiopheneanalogue 1b of the analgesic and antipyreticagentEthenzamide and of a closely related compound 1a showed that a great similarity exists among Ethenzamide and the thiophenic compounds for analgesic, antipyretic, ulcerogenic, hypothermic, and sedative effects. However, the acute toxicity in mice for the thiophenic compounds is notably higher than that
5-heterocyclyl pyrazolo[4,3-d]pyrimidin-7-ones for the treatment of male
申请人:Janssen Pharmaceutica, N.V.
公开号:US06077841A1
公开(公告)日:2000-06-20
The invention is directed to novel substituted 5-heterocyclyl pyrazolopyrimidinones and derivatives thereof, their synthesis and their use in treating sexual dysfunction in mammals, especially male erectile dysfunction. Pharmaceutical compositions containing the compounds and methods of using them to treat sexual dysfunction are also described.
We have identified 5-(3-chlorothiophen-2-yl)-3-(4-trifluoromethylphenyl)-1,2,4-oxadiazole (1d) as a novel apoptosis inducer through our caspase- and cell-based high-throughput screening assay. Compound 1d has good activity against several breast and colorectal cancer cell lines but is inactive against several other cancer cell lines. In a flow cytometry assay, treatment of T47D cells with 1d resulted in arrest of cells in the G, phase, followed by induction of apoptosis. SAR studies of 1d showed that the 3-phenyl group can be replaced by a pyridyl group, and a substituted five-member ring in the 5-position is important for activity. 5-(3-Chlorothiophen-2-yl)-3-(5-chloropyridin-2-yl)-1,2,4-oxadiazole (41) has been found to have in vivo activity in a MX-1 tumor model. Using a photoaffinity agent, the molecular target has been identified as TIP47, an IGF II receptor binding protein. Therefore, our cell-based chemical genetics approach for the discovery of apoptosis inducers can identify potential anticancer agents as well as their molecular targets.
5-HETEROCYCLYL PYRAZOLO 4,3-D]PYRIMIDIN-7-ONES FOR THE TREATMENT OF MALE ERECTILE DYSFUNCTION