[EN] PROCESS FOR THE PREPARATION OF CHIRAL PYROLLIDINE-2-YL- METHANOL DERIVATIVES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS CHIRAUX DE PYROLLIDINE-2-YL-MÉTHANOL
申请人:HOFFMANN LA ROCHE
公开号:WO2018153820A1
公开(公告)日:2018-08-30
The invention relates to a novel process for the preparation of a chiral pyrollidine-2-yl-methanol derivative or a salt thereof of the formula (I), wherein R1 is aryl or heteroaryl and both aryl or heteroaryl are optionally substituted by C1-4-alkyl, halo-C1-4-alkyl, C1-4-alkoxy or halogen. The synthesis proceeds through an intermediate Weinreb amide, which is reacted with a Grignard reagent and hydrogenated. The chiral pyrollidine-2-yl-methanol derivatives of the formula (I) are versatile building blocks in the synthesis of pharmacologically active compounds, such as for the stereospecific synthesis of oligonucleotides carrying chiral phosphonate moieties.
该发明涉及一种新型制备手性吡咯烷基-2-甲醇衍生物或其盐的方法,其化学式为(I),其中R1为芳基或杂芳基,且芳基或杂芳基可选择地被C1-4-烷基、卤代C1-4-烷基、C1-4-烷氧基或卤素取代。合成过程通过中间体酰胺酯与格氏试剂反应并进行氢化。化学式(I)中的手性吡咯烷基-2-甲醇衍生物是合成药理活性化合物的多功能构建块,例如用于携带手性膦酸酯基团的寡核苷酸的立体选择性合成。