申请人:SANKYO COMPANY, LIMITED
公开号:US20030236297A1
公开(公告)日:2003-12-25
Compounds of formula (I) which exhibit excellent immune suppression activity, pharmacologically acceptable salts thereof, esters thereof or other derivatives:
1
wherein R
1
and R
2
are a hydrogen atom, an amino protecting group; R
3
is a hydrogen atom, a hydroxy protecting group; R
4
is a lower alkyl group; n is an integer from 1 to 6; X is an ethylene group; Y is a C
1
-C
10
alkylene group, a C
1
-C
10
alkylene group substituted with 1 to 3 substituents selected from substituent group a and b; R
5
is an aryl group; R
6
and R
7
are a hydrogen atom, a group selected from substituent group a; with the proviso when R
5
is a hydrogen atom, Y is not a single bond or a straight chain C
1
-C
10
alkylene group.
式(I)的化合物表现出优异的免疫抑制活性,其药理学上可接受的盐,酯或其他衍生物:其中R1和R2是氢原子,氨基保护基;R3是氢原子,羟基保护基;R4是较低的烷基基团;n是1到6之间的整数;X是乙烯基团;Y是C1-C10烷基基团,带有1到3个从取代基a和b中选择的取代基的C1-C10烷基基团;R5是芳基基团;R6和R7是氢原子,从取代基a中选择的基团;但是当R5是氢原子时,Y不是单键或直链的C1-C10烷基基团。