| 摘要 |
<p>Drugs containing, as the active ingredient, compounds represented by the general formula (III) or salts thereof, or hydrates or solvates of both which can be improved in tissue selectivity by undergoing metabolism: (III) wherein Q is a parent having a medical effect; X is a substituent effective in enhancing the targeting effect of a drug; and R2 and R3 are each independently ethyl substituted with one or more halogen atoms.</p> |
