申请人:Miura Tomoaki
公开号:US20070042974A1
公开(公告)日:2007-02-22
A compound represented by the following general formula (1) or a pharmaceutically acceptable salt thereof, which is useful for a prophylactic and/or therapeutic treatment of a microbial infectious disease.
[R
1
is hydrogen atom, or a linear C1-6 alkylcarbonyl group; R
2
is hydrogen atom, or a C1-6 alkylcarbonyl group; R
3
is hydrogen atom, a C1-6 alkyl group, a C1-6 alkylcarbonyl group, a C1-6 alkenyl group, a C2-6 alkenylcarbonyl group, a C2-6 alkynyl group, or an Ar—B— group (Ar represents an aryl group, or a heterocyclic group, and B is a C1-6 alkyl group, a C1-6 alkylcarbonyl group, a C2-6 alkenyl group, a C2-6 alkenylcarbonyl group, or a C2-6 alkynyl group); R
5
, R
6
, R
7
, and R
8
represent hydrogen atom, a C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, or an Ar—B′— group (B′ is a C1-6 alkyl group, a C2-6 alkenyl group, or a C2-6 alkynyl group); X is oxygen atom, or an —NR
4
— group (R
4
is hydrogen atom, a C1-6 alkyl group, or a C1-6 alkyl group which may be substituted with an Ar group); and R
4′
is hydrogen atom, or a group represented by the aforementioned formula (a) (R
3″
and R
4″
represent hydrogen atom, or a linear or branched C1-6 alkylcarbonyl group)]
下列通式(1)所代表的化合物或其药学上可接受的盐,可用于预防和/或治疗微生物感染性疾病。[其中R1为氢原子或线性C1-6烷基羰基基团;R2为氢原子或C1-6烷基羰基基团;R3为氢原子、C1-6烷基、C1-6烷基羰基基团、C1-6烯基、C2-6烯基羰基基团、C2-6炔基或Ar-B-基团(Ar代表芳基或杂环基,B为C1-6烷基、C1-6烷基羰基基团、C2-6烯基、C2-6烯基羰基基团或C2-6炔基);R5、R6、R7和R8代表氢原子、C1-6烷基、C2-6烯基、C2-6炔基或Ar-B′-基团(B′为C1-6烷基、C2-6烯基或C2-6炔基);X为氧原子或-NR4-基团(R4为氢原子、C1-6烷基或可被芳基取代的C1-6烷基);R4′为氢原子或上述通式(a)所代表的基团(R3″和R4″代表氢原子或线性或支链状C1-6烷基羰基基团)]