The invention concerns the novel racemic and laevorotatory optically active forms of the thromboxane A2 antagonist 5(Z)-7 -([2,4,5-cis]-4-o-hydroxyphenyl -2-trifluoromethyl- 1,3 - dioxan-5-yl)heptenoic acid of formula l, their salts, pharmaceutical compositions, and processes for their manufacture and intermediates therefor. The pharmaceutical agents and their compositions are of value in certain pulmonary and/or vascular disorders.
本发明涉及血栓素 A2 拮抗剂 5(Z)-7 -([2,4,5-顺式]-4-邻羟基苯基-2-三
氟甲基-1,3-二氧杂
环戊烷-5-基)式 l 的新型外消旋和去消旋光学活性形式、其盐类、药物组合物及其生产工艺和中间体。这些药剂及其组合物对某些肺部和/或血管疾病有治疗价值。