申请人:Baba Masanori
公开号:US20100256379A1
公开(公告)日:2010-10-07
The present invention relates to an anti-viral agent comprising a compound represented by the following formula (I):
(wherein X represents CH, a nitrogen atom, an oxygen atom, or a sulfur atom;
Y and Z are the same or different and each represents a nitrogen atom or C—R
8
, and at least one of them represents a nitrogen atom;
R
1
to R
8
are the same or different and each represents a hydrogen atom, a linear C
1-10
-hydrocarbon group, a hydroxy group, or a substituted or unsubstituted benzyl group; and,
when X represents an oxygen atom or a sulfur atom, R
5
is absent), or the following formula (II):
(wherein X′ represents CH or a nitrogen atom;
Y′ and Z′ are the same or different and each represents a nitrogen atom or N—R
9
, or C—R
8
and at least one of them represents a nitrogen atom or N—R
9
;
R
1
to R
4
and R
6
to R
8
are as defined above;
R
9
represents a hydrogen atom, a linear C
1-10
-hydrocarbon group, a hydroxy group, or a substituted or unsubstituted benzyl group; and,
the C ring has the maximum number of double bonds at the dotted line portion)
or a pharmaceutically acceptable salt thereof.