AMIDE DERIVATIVE HAVING ANTIVIRAL ACTIVITY

The present invention provides a compound represented by formula (I) :wherein the dashed line indicates the presence or absence of a bond; R1 is carboxy or the like; L is substituted or unsubstituted non-aromatic carbocyclyldiyl or the like; R2 is substituted or unsubstituted alkyl; R3 is a hydrogen atom or the like; X is =CRX-or =N-; Y is =CRY- or =N-; U is -CRU= or -N=; V is -CRV= or -N=; W is =CRW- or =N-; ZA is -C= or -N-; ZB is -CR5R6- or the like; ZC is -CR7R8- or the like; RX, RY, RV and RW are each independently a hydrogen atom or the like; RU is a hydrogen atom or the like; R5 and R6 are each independently a hydrogen atom or the like; R7 and R8 are each independently a hydrogen atom or the like; R4 is substituted or unsubstituted alkyloxy or the like,or a pharmaceutically acceptable salt thereof, having an antiviral activity; and a pharmaceutical composition comprising the same.