| 摘要 |
A compound represented by general formula (I) [in the formula, L1 represents an optionally substituted C1-6 alkylene group or the like, L2 represents a single bond or the like, L3 represents a single bond or the like, R1, R2 and R3 each independently represent an optionally substituted C1-4 alkyl group or the like, R4 represents a hydrogen atom or the like, and R5 represents a hydrogen atom or the like] or a pharmacologically acceptable salt thereof. |
