申请人:Mortimore Michael
公开号:US20080015172A1
公开(公告)日:2008-01-17
This invention provides caspase inhibitors of formula I:
wherein Z is oxygen or sulfur; R
1
is hydrogen, —CHN
2
, R, CH
2
OR, CH
2
SR, or —CH
2
Y;
between R
3
and R
4
represents a single or double bond; Y is an electronegative leaving group; R
2
is CO
2
H, CH
2
CO
2
H, or esters, amides or isosteres thereof; R
3
is a group capable of fitting into the S2 subsite of a caspase enzyme; R
4
is a hydrogen or C
1-6
alkyl or R
3
and R
4
taken together form a ring; Ring A and Ring B are each heterocyclic rings, and R and R
5
are as described in the specification. The compounds are effective inhibitors of apoptosis and IL-1β secretion.
本发明提供了式I的caspase抑制剂:其中Z为氧或硫;R1为氢,—CHN2,R,CH2OR,CH2SR或—CH2Y;R3和R4之间表示单键或双键;Y为电负性离去基团;R2为CO2H,CH2CO2H或其酯,酰胺或异构体;R3是能够适配到caspase酶的S2亚位点的基团;R4为氢或C1-6烷基或R3和R4共同形成环;环A和环B各自为杂环环,R和R5如规范中所述。这些化合物是有效的凋亡和IL-1β分泌抑制剂。