Benzoprostacyclin intermediates and methods for their preparation are disclosed. The intermediates may be used to synthesise Beraprost which is a valuable drug for the treatment of pulmonary vascular and peripheral vascular diseases. The intermediates are synthesised via a convergent seven step approach based on the known racemic cyclopentenone intermediate (±)-2-(2-allyloxy-3-bromophenyl)-4-hydroxy-cyclopent-2-enone (1).
                            本文披露了苯丙环
前列环素中间体及其制备方法。这些中间体可用于合成贝拉前列素,这是一种用于治疗肺血管和外周血管疾病的有价值的药物。这些中间体通过基于已知的外消旋
环戊烯酮中间体(±)-2-(2-烯丙氧基-3-
溴苯基)-
4-羟基环戊-2-烯酮(1)的收敛七步法合成。