This invention in one embodiment is directed to a compound of Formula Ia;
where the designation (R) indicates that the designated carbon has the (R) stereochemistry; and wherein Z1 is hydrogen or fluorine; Z2 is hydrogen, deuterium, or fluorine; Z3 is deuterium; Z4 is fluorine; m is an integer from 0 to 10; n is an integer from 0 to 2; provided that: the sum of m+n does not exceed 10; and when both Z1 and Z2 are hydrogen, the sum of m+n is greater than 0, and pharmaceutically acceptable salts thereof. This invention also provides compositions comprising one or more compounds of this invention and a carrier and the use of the disclosed compounds and compositions in methods of treating diseases and conditions that are beneficially treated by administering an antihelminthic agent, such as praziquantel.
在一个实施例中,这项发明涉及一种化合物,其
化学式为Ia;其中指定的(R)表示指定的碳原子具有(R)立体
化学结构;其中Z1为氢或
氟;Z2为氢、
氘或
氟;Z3为
氘;Z4为
氟;m为0到10之间的整数;n为0到2之间的整数;前提是:m+n的总和不超过10;当Z1和Z2都为氢时,m+n的总和大于0,并且其药学上可接受的盐。该发明还提供了包含本发明中一种或多种化合物及载体的组合物,以及使用所披露的化合物和组合物治疗通过给予抗蠕虫剂(如
吡喹酮)受益的疾病和情况的方法。