Total Synthesis of Hypermodified Epothilone Analogs with Potent in Vitro Antitumor Activity
作者:Christian N. Kuzniewski、Jürg Gertsch、Markus Wartmann、Karl-Heinz Altmann
DOI:10.1021/ol800089x
日期:2008.3.1
The convergent totalsynthesis of hypermodified epothilone analogs 1 and 2 has been achieved with the stereoselective cyclopropanation of allylic alcohol 17 and ring-closing olefinmetathesis with diene 22 as the key steps. In spite of significant structural differences between these analogs and the natural epothilone scaffold, 1 and 2 are potent inducers of tubulin polymerization and inhibit the growth
Epothilone derivatives of Formula (I) and their use as a pharmaceutical.
Formula (I)的Epothilone衍生物及其作为药物的用途。
12-Aza-epothilones, process for their preparation and their use as antiproliferative agents
申请人:ETH Zürich
公开号:EP1845096A1
公开(公告)日:2007-10-17
The invention relates to 12-aza-epothilones of formula (I)
wherein R1 is optionally substituted antinocarbonyl, optionally substituted atkoxycarbonyl, aryloxycarbonyl or heteroaryl and R2 is a radical of formula (II)
wherein X is S, O, NR4, -C(R5)=N-, -N=C(R5)- or -C(R5)=C(R6)-: and R3, R4, R5 and R6 are as defined in the specification, and which is bound to the radical of formula (I) at one of the two carbon atoms indicated with an asterix; a method of manufacture of these compounds, new intermediates, pharmaceutical preparations containing these compounds, and the use of these compounds in the treatment of proliferative diseases. These 12-aza-epothilones are highly potent cytotoxic compounds and are active against multidrug-resistant cell lines and tumours.
Natural Products as Leads for Anticancer Drug Discovery: Discovery of New Chemotypes of Microtubule Stabilizers through Reengineering of the Epothilone Scaffold
作者:Karl-Heinz Altmann、Frédéric Cachoux、Fabian Feyen、Jürg Gertsch、Christian N. Kuzniewski、Markus Wartmann
DOI:10.2533/chimia.2010.8
日期:——
the collection of epothilone analogs that have been (or still are) investigated clinically is rather limited and their individual structures show little divergence from the original natural product leads. In contrast, we have elaborated a series of epothilone-derived macro-lactones, whose overall structural features significantly deviate from those of the natural epothilonescaffold and thus define new