The present invention relates generally to the enantiomers of para-hydroxy-milnacipran or congeners thereof. Biological assays revealed that racemic para-hydroxy-milnacipran is approximately equipotent in inhibiting serotonin and norepinephrine uptake (IC
50
=28.6 nM for norepinephrine, IC
50
=21.7 nM for serotonin). Interestingly, (+)-para-hydroxy-milnacipran is a more potent inhibitor of norepinephrine uptake than serotonin uptake (IC
50
=10.3 nM for norepinephrine, IC
50
=22 nM for serotonin). In contrast, (−)-para-hydroxy-milnacipran is a more potent inhibitor of serotonin uptake compared to norepinephrin uptake (IC
50
=88.5 nM for norepinephrine, IC
50
=40.3 nM for serotonin). The invention also relates to salts and prodrug forms of the aforementioned compounds. In certain embodiments, the compounds of the present invention and a pharmaceutically acceptable excipient are combined to prepare a formulation for administration to a patient. Finally, the present invention relates to methods of treating mammals suffering from various afflictions, e.g., depression, chronic pain, or fibromyalgia, comprising administering to a mammal in need thereof a therapeutically effective amount of a compound of the present invention.
本发明一般涉及对羟基米那西普兰的对映体或其同系物。
生物学测定显示,外消旋对羟基米那西普兰在抑制
血清素和
去甲肾上腺素摄取方面具有近似等效的作用(IC
50
等于;
去甲肾上腺素为 28.6 nM,IC
50
相当于 21.7 nM)。有趣的是,(+)-para-hydroxy-milnacipran 对
去甲肾上腺素摄取的抑制作用比对
血清素摄取的抑制作用更强(IC
50
去甲肾上腺素为 10.3 nM,而
血清素摄取的 IC
50
相当于 22 nM)。相比之下,(-)-对羟基米那西普兰是一种比
去甲肾上腺素摄取更强的
血清素摄取
抑制剂(IC
50
为 88.5 nM,
去甲肾上腺素的 IC
50
为 40.3 nM)。本发明还涉及上述化合物的盐和原药形式。在某些实施方案中,将本发明的化合物和药学上可接受的赋形剂结合起来,制备成制剂给患者用药。最后,本发明涉及治疗患有各种疾病(如抑郁症、慢性疼痛或纤维肌痛)的哺乳动物的方法,包括向有需要的哺乳动物施用治疗有效量的本发明化合物。