| 摘要 |
The subject invention provides stereoisomeric compounds of formulae (Xa) and (Xb); wherein the variables are as defined herein, and compositions for the safe and effective treatment of various gastrointestinal disorders including, but not limited to, gastroparesis, gastroesophageal reflux and related conditions. The compounds of the subject invention are also useful in treating a variety of conditions involving the central nervous system. |
