This invention relates to a novel process for synthesising the product ibodutant shown in the figure below, consisting of a small number of high- yield steps involving reagents and solvents with low environmental impact, characterised by the coupling of two portions, compounds (3) and (4), one of which (3) is synthesised by coupling of 6-methyl-2- benzo[b]thiophenecarboxylic acid (1) with 1-amino-alpha-alpha-cyclopentan carboxylic acid and subsequent cyclization with oxazolone, while the other, compound (4), is obtained from suitable highly selective functionalisations of 4-aminomethylpiperidine (2).
本发明涉及一种新型合成ibodutant产品的方法,如下图所示,包括少量高产率步骤,使用具有低环境影响的试剂和溶剂,其特征是将两个部分化合物(3)和(4)耦合,其中一个(3)是通过将6-甲基-2-苯并[b]
噻吩羧酸(1)与1-
氨基-α-α-
环戊烷羧酸偶联,随后与
噁唑烷环化而合成的,而另一个化合物(4)则是通过适当的高选择性
4-氨甲基哌啶(2)的官能化反应获得的。