A compound represented by the general formula:
wherein X
1
represents a nitrogen atom or a group represented by the formula —CR
10
═; X
2
represents a nitrogen atom or a group represented by the formula —CR
11
═; Y represents an oxygen atom or the like; R
1
represents a C
1-6
alkoxy group, an optionally substituted C
6-10
aryloxy group, a group represented by the formula —NR
12a
R
12b
or the like; R
2
represents a hydrogen atom, an optionally substituted C
1-6
alkyl group, or the like; R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
10
and R
11
each independently represent a hydrogen atom, a halogen atom, an optionally substituted C
1-6
alkyl group, or the like; R
9
represents a group represented by the formula —NR
16a
R
16b
or the like; and R
12a
, R
12b
, R
16a
and R
16b
each independently represent a hydrogen atom, an optionally substituted C
1-6
alkyl group, or the like, a salt thereof, or a hydrate of the foregoing.
A compound represented by the general formula:
wherein X1 represents a nitrogen atom or a group represented by the formula -CR10=; X2 represents a nitrogen atom or a group represented by the formula -CR11=; Y represents an oxygen atom or the like; R1 represents a C1-6 alkoxy group, an optionally substituted C6-10 aryloxy group, a group represented by the formula -NR12aR12b or the like; R2 represents a hydrogen atom, an optionally substituted C1-6 alkyl group, or the like; R3, R4, R5, R6, R7, R8, R10 and R11 each independently represent a hydrogen atom, a halogen atom, an optionally substituted C1-6 alkyl group, or the like; R9 represents a group represented by the formula -NR16aR16b or the like; and R12a, R12b, R16a and R16b each independently represent a hydrogen atom, an optionally substituted C1-6 alkyl group, or the like, a salt thereof, or a hydrate of the foregoing.