A New Family of Small Molecules To Probe the Reactivation of Mutant p53
摘要:
Cells that express mutant p53 derived from cancers are selectively killed by a new class of small organic molecules. The protein p53 is recognized as one of the most important guardians in the body that prevents tumor development. Mutant forms of p53 are present in approximately 50% of all human cancers. Molecules that selectively kill cells expressing mutant p53 could become important chemotherapeutic agents. Our research focuses on developing a synthetically accessible class of molecules that can be easily modified to examine structural activity relationships and mechanism of biological activity or to optimize for anticancer activity. In this communication, a new class of molecules that selectively arrests growth of cells expressing two forms of mutant p53 is described. Synthetic routes to these compounds are also presented.
The present invention provides a compound represented by the formula
wherein each symbol is as defined in the specification, or a salt thereof. The compound of the present invention shows a strong IAP antagonistic activity.
Intermolecular Allylic C−H Etherification of Internal Olefins
作者:Taylor A. F. Nelson、Simon B. Blakey
DOI:10.1002/anie.201809863
日期:2018.11.5
development of an oxidative allylic C−H etherification reaction, utilizing internal olefins and alcohols as simple precursors. Key advances include the use of RhCp* complexes to promote the allylic C−H functionalization of internal olefins and the compatibility of the oxidative conditions with oxidatively sensitive alcohols, enabling the direct etherification reaction. Preliminary mechanistic studies
The present invention relates to pyrazolo pyrimidine derivatives, to methods of preparing these, to combinations and pharmaceutical composition comprising these, and to their use in the treatment of diseases and disorders which may for example involve autoimmune diseases, angiogenesis, pain, and/or inflammatory diseases.
Assembly of the TAN-1057 A/B Heterocycle from a Dehydroalanine Precursor
作者:Peishan Lin、A. Ganesan
DOI:10.1055/s-2000-8713
日期:——
A tandem reaction process was used to form the tetrahydropyrimidinone core of the TAN-1057 A and B dipeptide antibiotics. Michael addition of ammonia to a dehydroalanine derivative, followed by intramolecular displacement of an S-methylisothiourea assembles the tetrahydropyrimidinone in one-step.
Total Synthesis of Microcystin-LF and Derivatives Thereof
作者:Ivan Zemskov、Stefan Altaner、Daniel R. Dietrich、Valentin Wittmann
DOI:10.1021/acs.joc.7b00175
日期:2017.4.7
by cyanobacteria. They can be released to the water during harmful algal blooms and are a serious threat to animals and humans. Described is the totalsynthesis of the cyanotoxin microcystin-LF (MC-LF, 1a) and two derivatives thereof. Deuterated derivative 1b is of interest as an internal standard during MC quantification in biological samples by mass spectrometry and alkyne-labeled 1c can be employed