NOVEL FUSED AMINODIHYDROTHIAZINE DERIVATIVE

摘要

A compound represented by general formula (I), a pharmaceutically acceptable salt thereof, or a solvate of the compound or salt has an Aß production inhibitory activity or BACE 1 inhibitory activity, and is thus useful as an agent for treating neurodegenerative diseases caused by Aß as typified by Alzheimer's disease. (In the formula, ring A represents a C6-14 aryl group or the like; L represents -NRLCO- (wherein RL represents a hydrogen atom or the like) or the like; ring B represents a C6-14 aryl group or the like; X represents a C1-3 alkylene group or the like; Y represents a C1-3 alkylene group or the like; Z represents an oxygen atom or the like; R1 and R2 each independently represents a hydrogen atom or the like; and R3, R4, R5 and R6 each independently represents a hydrogen atom, a halogen atom or the like.)