DIHYDROPYRROLOPYRAZOLE DERIVATIVE

The present invention provides a compound represented by general formula (I) or a pharmacologically acceptable salt thereof. [In the formula, the two Rs each independently represents a C1-3 alkyl group, or are bonded together to form a C2-5 alkylene group, A represents a C6-10 aryl group (which may be a substituted C6-10 aryl group), Z represents a hydrogen atom or a C1-6 alkyl group (which may be a substituted C1-10 aryl group), or A and Z may be bonded to each other, with the group represented by Z-N-A forming a bicyclic fused heteroaryl group, which may be substituted, and R1, R2, and R3 each independently represents a linear or branched C1-4 alkyl group that may be substituted.]