The present invention relates to processes for the preparation of an endothelial receptor antagonist. The present invention particularly relates to synthesis of 4-tert-butyl-N-[6-(2-hydroxyethoxy)-5-(2-methoxyphenoxy)-2-(2-pyrimidinyl)-4-pyrimidinyl] benzene sulfonamide (bosentan).
                            本发明涉及制备内皮受体拮抗剂的工艺。本发明特别涉及合成4-叔丁基-N-[6-(2-羟基乙氧基)-5-(2-
甲氧基苯氧基)-2-(2-
嘧啶基)-4-
嘧啶基]苯磺酰胺(博森坦)的方法。