| 摘要 |
<p>The present invention relates to a compound of formula (I) wherein R1 is hydrogen or a hydroxy protective group, R2 is hydrogen or an amino protective group, R3 is lower alkoxycarbonylamino, and R4 is lower alkoxycarbonylamino, or a salt thereof. The compound (I) of the present invention and pharmaceutically acceptable salts thereof are useful for the prophylactic and/or the therapeutic treatment of pollakiurea or urinary incontinence.</p> |
