[EN] METHODS FOR THE PREPARATION OF PYRAZOLO[3,4-D]PYRIMIDIN-4-ONES AND INTERMEDIATES USED THEREIN<br/>[FR] PROCÉDÉS DE PRÉPARATION DE PYRAZOLO[3,4-D]PYRIMIDIN-4-ONES ET INTERMÉDIAIRES AINSI UTILISÉS
申请人:ADAMA MAKHTESHIM LTD
公开号:WO2022084990A1
公开(公告)日:2022-04-28
There are provided novel Ring-Closure Intermediates of formulae 1 and 1', as defined herein, including salts and N-Oxides of the 3-pyridine substituted examples thereof, and novel precursor compounds 5 and b etc., as defined herein, all of which areinter alia, useful intermediates in the preparation of certain heterocycle substituted pyrazolo[3,4-d]pyrimidin-4-ones of formula 2 as defined herein, including salts and N-Oxides of the 3-pyridine substituted examples thereof all referred to herein as Cyclic Products. Further provided are methods of preparation of the novel compounds herein provided and methods of preparation of certain heterocycle substituted pyrazolo[3,4-d]pyrimidin-4-ones including salts and N- Oxides of the 3-pyridine substituted examples thereof: (I).
本文提供了式1和1'的新颖环合成中间体,包括其3-吡啶取代例子的盐和N-氧化物,以及在此定义下的新前体化合物5和b等。这些化合物都是在制备某些杂环取代的吡唑并[3,4-d]嘧啶-4-酮(在此定义下为式2,包括其3-吡啶取代例子的盐和N-氧化物,统称为环状产物)中有用的中间体。此外,还提供了制备上述新化合物和制备某些杂环取代的吡唑并[3,4-d]嘧啶-4-酮(包括其3-吡啶取代例子的盐和N-氧化物)的方法。 (I)