Disclosed is an optimal prodrug of a cinnamide compound represented by Formula (I) below.
In the formula, Ra and Rb respectively represent a C1-6 alkyl group or the like; Xa represents a methoxy group or a fluorine atom; Y represents a phosphono group or the like; and A represents a cyclic lactam derivative.
The present invention provides a most suitable prodrug of a cinnamide compound. The prodrug is represented by Formula (I)
wherein R
a
and R
b
each denote a C1-6 alkyl group or the like; X
a
denotes a methoxy group or a fluorine atom; Y denotes a phosphono group or the like; and A denotes a cyclic lactam derivative.
本发明提供了一种桂皮酰胺化合物的最适宜的前药。该前药由式(I)表示,其中R
a
和R
b
分别表示C1-6烷基或类似物;X
a
表示甲氧基或氟原子;Y表示磷酸酯基团或类似物;A表示环内酰胺衍生物。