A derivative, which is useful as a ret kinase inhibitor is described herein. The described invention also includes methods of using the same in the treatment of diseases mediated by inappropriate ret kinase activity.
AMINOMETHYLENE DERIVATIVES AND ULTRAVIOLET ABSORBER COMPRISING THE SAME
申请人:CHEMIPRO KASEI KAISHA, LIMITED
公开号:EP0950655A1
公开(公告)日:1999-10-20
The present invention provides an aminomethylene derivative represented by general formula (I):
wherein A is a cyclic oxo group selected from the group consisting of following general formulae (a), (b), (c), (d) and (e):
wherein R1, R2, R3, R4 and R5 each independently represent H, an alkyl group or the like; R6, R7 and R8 each independently represent an alkyl group or the like; R1 and R2 or R7 and R8 may combine with each other to form a tetramethylene group or the like; R represents an alkyl group optionally containing OH or O; and n is an integer of 0 to 4, a process for the same, and the use thereof. The derivatives have an excellent ultraviolet absorption ability and a high optical stability.
A derivative, which is useful as a ret kinase inhibitor is described herein. The described invention also includes methods of using the same in the treatment of diseases mediated by inappropriate ret kinase activity.