申请人:TADDEI Maurizio
公开号:US20090156811A1
公开(公告)日:2009-06-18
A process for the preparation of 4-tert-butyl-N-[6-(2-hydroxy-ethoxy)-5-(2-methoxy-phenoxy)-[2,2′]bipyrimidinyl-4-yl]-benzenesulfonamide, bosentan, comprising the reaction of a compound of formula (II) or a salt thereof,
wherein Z is an optionally protected hydroxy group,
with a compound of formula (III),
in the presence of a base; and, if necessary, the removal of the hydroxy-protecting group, and/or, if desired, the conversion of a compound of formula (I) to a salt thereof, or vice versa; and novel intermediates useful for its synthesis.
一种制备4-叔丁基-N-[6-(2-羟基乙氧基)-5-(2-甲氧基-phenoxy)-[2,2′]联吡啶基-4-基]-苯磺酰胺波生坦的方法,包括将式(II)化合物或其盐与式(III)化合物在碱的存在下反应;必要时去除羟基保护基,或者根据需要将式(I)化合物转化为其盐,反之亦然;以及用于合成的新中间体。