申请人:——
公开号:US20030105332A1
公开(公告)日:2003-06-05
The present invention provides stereoscopically-pure diastereomers of Formula I:
1
In a preferred embodiment, the stereoisomers of the present invention are of Formula II, depicted below:
2
R
2
, R
3
and le are independently H, OH, OCH
3
, CH
2
OH, NHCONH
2
, NH
2
, halogen or CF
3
, and R
1
is pyridine, or an amine which may be substituted with hydrogen, lower alkyl, lower alkylenearyl, lower alkylenephenyl, lower alkylenehydroxyphenyl, lower alkyleneamine, lower alkyleneaminoaryl, lower alkylaminohydroxyphenyl, or a similar functional group. TV is hydrogen, hydroxyl or methyl; R
6
is hydrogen, lower alkyl, lower alkylenaryl, lower alkylenephenyl, lower alkylenehydroxyphenyl, lower alkyleneamine, lower alkyleneaminoaryl, lower alkylaminohydroxyphenyl, and the like. For both Formula I and Formual II, the firs carbon on the side chain progressing from the ring is preferably in the R-configuration. The second carbon atom on the side chain of Formula II, which is attached to IV, may or may not be a chiral center. However, when the second carbon atom is a chiral center, it is preferably in the S-configuration. The present invention contemplates each stereoisomer of Formula I and II in substantially-pure form.
The present invention also provides methods of relieving nasal, sinus and bronchial congestion and of treating attention deficit hyperactivity disorder and obesity. The present stereoisomers may also be used to induce pupil dilation. These methods include administering to a mammal a composition containing a therapeutically effective amount of a stereoscopically-pure stereoisomer of Formula I or II with a pharmaceutically acceptable excipient.
本发明提供了公式I的立体纯异构体:在一种优选实施方式中,本发明的立体异构体为下图所示的公式II:R2、R3和le分别独立地为H、OH、OCH3、CH2OH、NHCONH2、NH2、卤素或CF3,而R1为吡啶,或者可能被氢、低烷基、低烷基芳基、低烷基苯基、低烷基羟基苯基、低烷基胺基、低烷基氨基芳基、低烷基氨基羟基苯基或类似官能团取代的胺。TV为氢、羟基或甲基;R6为氢、低烷基、低烷基芳基、低烷基苯基、低烷基羟基苯基、低烷基胺基、低烷基氨基芳基、低烷基氨基羟基苯基等。对于公式I和公式II,从环中延伸的侧链上的第一个碳原子最好处于R构型。公式II侧链上与IV相连的第二个碳原子可能是手性中心,也可能不是。然而,当第二个碳原子是手性中心时,最好处于S构型。本发明考虑了公式I和II的每个立体异构体基本纯净形式。本发明还提供了缓解鼻腔、鼻窦和支气管充血、治疗注意力缺陷多动障碍和肥胖的方法。本发明的立体异构体也可用于诱导瞳孔扩张。这些方法包括向哺乳动物投与含有公式I或II的立体纯异构体的药学可接受的赋形剂的治疗有效量的组合物。