Discovery of Potent and Selective Histone Deacetylase Inhibitors via Focused Combinatorial Libraries of Cyclic α<sub>3</sub>β-Tetrapeptides
作者:Christian A. Olsen、M. Reza Ghadiri
DOI:10.1021/jm900850t
日期:2009.12.10
libraries to the discovery of potent HDAC ligands using a convenient screening platform. Our studies led to the first HDAC6-selective cyclictetrapeptide analogue, which extends the use of cyclictetrapeptides to the class II HDAC isoforms. These findings highlight the persistent potential of cyclictetrapeptides as epigenetic modulators and possible anticancer drug lead compounds.
TRICYCLIC-BIS-ENONE DERIVATIVES AND METHODS OF USE THEREOF
申请人:Honda Tadashi
公开号:US20070155742A1
公开(公告)日:2007-07-05
Novel tricyclic-bis-enone derivatives (TBEs) as well as the process for the preparation of such TBEs are provided. Also provided are methods for prevention and/or treatment of cancer, Alzheimer's disease, Parkinson's disease, multiple sclerosis, amyotropic lateral sclerosis, rheumatoid arthritis, inflammatory bowel disease, and all other diseases whose pathogenesis is believed to involve excessive production of either nitric oxide (NO) or prostaglandins or the overexpression of iNOS or COX-2 genes or gene products. Further, methods for the synthesis of the TBE compounds of the invention utilize cheap commercially available reagents and are highly cost effective and amenable to scale-up. Additional high efficiency synthetic methods that utilize novel intermediates as well as the synthesis of these intermediates are also provided. Furthermore, the invention also provides methods for designing novel and water-soluble TBEs.
Synthesis of (Z,E)- and (Z,Z)-α-farnesenes and -homofarnesenes
作者:E. David Morgan、Lorna D. Thompson
DOI:10.1039/p19850000399
日期:——
The ant substance (Z,E)-α-farnesene and its isomer (Z,Z)-α-farnesene have been synthesized in an overall yield of 34% in six stages from methyl cyclopropyl ketone and 6-methylhept-5-en-2-one via a Wittig condensation. A mixture of the corresponding (Z,E)-α-homofarnesene of ants and its (Z,Z) isomer were prepared in much poorer yield by the same method and incompletely characterized. The isomeric identification