The invention relates to a purified Isometheptene compound comprising the structure according to Formula (I),
or a hydrochloride, or a pharmaceutically acceptable addition salt thereof. In particular, the disclosure relates to the synthesis, purification and characterization of an Isometheptene isomer mucate crystal 2, wherein the Isometheptene isomer 2 is stereochemically characterized as (R)-enantiomer, respectively. The Isometheptene (R)-enantiomer activity indicates a selective centrally acting selective ligand for Imidazoline subtype 1 (I1) receptor sites; and more specifically, the disclosure provides an antihypertensive composition for treatment of migraine and other neurovascular or neurogenic pain from abdominal distress. (R)-Isometheptene enantiomer or isomer 2 may be an anti-hypertensive agent with lower side effects than the racemate form. Therefore (R)-Isometheptene is believed to be effective against episodic tension-type headaches (ETTH). The (R)-Isometheptene enantiomer or isomer 2 is believed to effectively lower blood pressure, used alone or together with other headache ameliorating drugs. Methods of synthesis and treatment are described. Regarding (R)-Isometheptene crystals data of X-ray crystallography are presented.
本发明涉及一种纯化的异
甲苯丙胺化合物,其结构符合公式(I),或其盐酸盐或药学上可接受的加合物。具体而言,本公开涉及异
甲苯丙胺异构体粘酸盐晶体2的合成、纯化和表征,其中异
甲苯丙胺异构体2的立体
化学特征为(R)-对映异构体。异
甲苯丙胺(R)-对映异构体活性表明其为
咪唑啉亚型1(I1)受体位点的选择性中枢作用选择性
配体;更具体地,本公开提供了一种治疗偏头痛和其他由腹部不适引起的神经血管或神经源性疼痛的降压组合物。(R)-异
甲苯丙胺对映异构体或异构体2可能是一种副作用比混合物形式更低的降压剂。因此,(R)-异
甲苯丙胺被认为对阵发性紧张型头痛(
ETTH)有效。(R)-异
甲苯丙胺对映异构体或异构体2被认为可以有效降低血压,单独使用或与其他缓解头痛的药物一起使用。描述了合成和治疗的方法。关于(R)-异
甲苯丙胺晶体的数据,提供了X射线晶体学的数据。