A method and compositions for treating persistent pulmonary hypertension in human newborns that deploys an intravenous infusion of a modified drug formed by adding one or more of a predetermined chemical arrangement to an efficacious parent drug compound so as to retain efficacy while re-directing a preferred route and rate of the parent drug compound's metabolism to an inactive or very weakly active and non-toxic metabolite are disclosed. The chemical arrangement is
1
wherein &phgr; is a phenyl, substituted aryl or heteroaryl system that is already present in the parent drug compound or is specifically added to the parent drug compound via a metabolically stable connection;
R is an alkyl or alkene containing chain either branched or unbranched from 0 to 10 carbons that is already present in the parent drug compound or is added to the parent drug compound via a metabolically stable connection to &phgr;;
X is a carboxyl, sulfoxyl or phosphatyl function that is specifically added to the parent drug compound via a metabolically stable connection to R; and,
R′ is an added alkyl, alkenyl or aralkyl group either branched or unbranched containing from 1 to 10 carbons, or is a structural element already present as an inherent portion of the parent drug compound.
本发明公开了一种用于治疗人类新生儿持续性肺动脉高压的方法和组合物,该方法和组合物采用静脉输注改良药物的方式,改良药物是通过在具有疗效的母体药物化合物中添加一种或多种预定的
化学排列方式形成的,从而在保留疗效的同时,将母体药物化合物代谢的首选途径和速率重新定向为无活性或活性极弱且无毒的代谢物。
化学结构如下
1
其中&phgr;是苯基、取代的芳基或杂芳基体系,该体系已经存在于母体药物化合物中,或通过代谢稳定的连接被特别添加到母体药物化合物中;
R 是含 0 至 10 个碳原子的支链或不支链的烷基或烯链,该链已存在于母体药物化合物中,或通过与 &phgr 的代谢稳定连接添加到母体药物化合物中;;
X 是羧基、
硫酰基或
磷酰基,通过与 R 的代谢稳定连接被添加到母体药物化合物中;以及
R′ 是添加的烷基、烯基或芳烷基,可以是含有 1 至 10 个碳原子的支链或非支链基团,或 者是作为母体药物化合物固有部分已经存在的结构元素。