申请人:Duke Chem, S. A.
公开号:EP2816030A1
公开(公告)日:2014-12-24
It relates to the compounds of formula [II-(R,S)] and formula [II-(S,R)], and to a process for their preparation which comprises: a) reacting an enantiomeric mixture containing a compound of formula [I-(R)] and a compound of formula [I-(S)] with a chiral agent in the presence of a solvent mixture; b) isolating the compound of formula [II-(R,S)] or, alternatively, the compound of formula [II-(S,R)] from the corresponding diastereomeric mixture; and c) optionally purifying them. It also relates to a process for the preparation of frovatriptan and its enantiomer from a compound of formula [II-(R,S)] or a compound of formula [II-(S,R)] respectively.
这涉及到公式[II-(R,S)]和公式[II-(S,R)]的化合物,以及它们的制备方法,包括:a)在溶剂混合物的存在下,将包含公式[I-(R)]化合物和公式[I-(S)]化合物的对映异构体混合物与手性试剂反应;b)从相应的对映异构体混合物中分离出公式[II-(R,S)]化合物或者公式[II-(S,R)]化合物;c)可选地对它们进行纯化。还涉及到从公式[II-(R,S)]化合物或公式[II-(S,R)]化合物中制备frovatriptan及其对映体的方法。