Optimisation of a key cross-coupling reaction towards the synthesis of a promising antileishmanial compound

被引:2
作者
Velasco, Raul F. [1 ]
Guerrero, Cesar [1 ]
Fra, Gloria [1 ]
Moure, Alejandra [1 ]
Miguel-Siles, Juan [2 ]
Teresa Quesada-Campos, Maria [2 ]
Ramon Ruiz-Gomez, Jose [2 ]
Gilbert, Ian H. [3 ]
Thomas, Michael G. [3 ]
Miles, Timothy J. [2 ]
机构
[1] GalChimia SA, Cebreiro S-N, O Pino 15823, A Coruna, Spain
[2] GlaxoSmithKline, Global Hlth R&D, Calle Severo Ochoa 2, Madrid 28760, Spain
[3] Univ Dundee, Sch Life Sci, Div Biol Chem & Drug Discovery, Wellcome Ctr Antiinfect Res,Drug Discovery Unit, Dundee DD1 5EH, Scotland
关键词
Buchwald-Hartwig coupling; Protecting group strategy; Visceral leishmaniasis; 2-(Trimethylsilyl)ethoxymethyl (SEM); C-C; PRECATALYSTS;
D O I
10.1016/j.tetlet.2019.03.068
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
During the course of a research program aimed at identifying novel antileishmanial compounds, a multi gram synthesis of N-(trans-44(4-methoxy-34(R)-3-methylmorpholino)-1H-pyrazolo[3,4-d]pyrimidin-6-yl)amino)cyclohexyl)-2-methylpropane-1-sulfonamide ((R)-1) was required. This letter describes optimisation of the reaction conditions and protecting group strategy for a key Buchwald-Hartwig coupling, delivering the required quantities of (R)-1, as well as further compounds in the series. Crown Copyright (C) 2019 Published by Elsevier Ltd.
引用
收藏
页码:1243 / 1247
页数:5
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