申请人:Chimmanamada Dinesh U.
公开号:US20080125587A1
公开(公告)日:2008-05-29
The present invention provides novel methods of preparing triazole compounds which inhibit the activity of Hsp90. One embodiment of the invention is directed to methods for preparing a triazole compound represented by the following Structural Formula:
or a tautomer, a pharmaceutically acceptable salt, solvate, or clathrate, or a prodrug thereof, comprising the steps of: a) reacting an amide represented by the following Structural Formula:
with a thionation reagent to form a thioamide; b) reacting the thioamide of step a) with hydrazine to form a hydrazonamide; c) reacting the hydrazonamide of step b) with a carbonylation or a thiocarbonylation reagent.
In one embodiment, the present invention is a method of synthesis of a compound of formula (IA)
or a tautomer, a pharmaceutically acceptable salt, solvate, or clathrate, or a prodrug thereof, comprising reacting a compound of formula (IIA)
with an oxidizing agent, thereby producing a compound of formula (IA).
The present invention is also directed to a method of preparing a compound or a tautomer thereof represented by the following Structural Formula:
or a tautomer, a pharmaceutically acceptable salt, solvate, or clathrate, or a prodrug thereof. The method comprises the step of reacting a first starting compound represented by the following Structural Formula:
in the presence of a mercuric salt, with a second starting compound represented by the following Structural Formula:
本发明提供了制备三唑化合物的新方法,该化合物抑制Hsp90的活性。发明的一种实施例涉及制备由以下结构式表示的三唑化合物的方法:或其互变异构体、药学上可接受的盐、溶剂合物、包合物或前药,包括以下步骤:a)将由以下结构式表示的酰胺与硫化试剂反应以形成硫酰胺;b)将步骤a)中的硫酰胺与肼反应以形成肼酰胺;c)将步骤b)中的肼酰胺与羰基化试剂或硫代羰基化试剂反应。在一个实施例中,本发明是一种合成公式(IA)的化合物的方法:或其互变异构体、药学上可接受的盐、溶剂合物、包合物或前药,包括将公式(IIA)的化合物与氧化剂反应,从而产生公式(IA)的化合物。本发明还涉及一种制备由以下结构式表示的化合物或其互变异构体的方法:或其互变异构体、药学上可接受的盐、溶剂合物、包合物或前药。该方法包括在汞盐的存在下,将由以下结构式表示的第一起始化合物与由以下结构式表示的第二起始化合物反应。