BENZOXAZINONE DERIVATIVE

摘要

[PROBLEMS] To provide a compound useful as an agent for the treatment of circulatory diseases, nervous system diseases, metabolic diseases, reproductive system diseases, and digestive tract diseases. [MEANS FOR SOLVING PROBLEMS] The compound, which is for use as an active ingredient, is represented by the formula (I): (see formula I) [wherein R1 represents optionally halogenated C1-6 alkyl, etc.; R2 represents, e.g., a group represented by the formula (II-I) or (II-4) (see formula II-1 see formula II-4) (wherein W represents C1-6 alkylene, etc. and R represents C1-6 alkyl, etc.); R3 represents hydrogen, C1-6 alkyl, etc.; X represents -O-, -NH-, etc.; and Y1, Y2, Y3, and Y4 each independently represents -CH-, -N-, etc.].