申请人:TANIFUJI Shigeyuki
公开号:US20110201808A1
公开(公告)日:2011-08-18
The invention relates to a compound which has affinity with amyloid, shows sufficiently rapid clearance from normal tissues and is suppressed in toxicity such as mutagenicity, and also relates to a low-toxic diagnostic agent for Alzheimer's disease containing the compound. The compound is represented by the following formula (1) or a salt thereof:
wherein A
1
, A
2
, A
3
and A
4
independently represent a carbon or a nitrogen, and
R
3
is a group represented by the following formula:
wherein R
1
is a radioactive halogen substituent; m is an integer of 0 to 4; and n is an integer of 0 or 1,
provided that at least one of A
1
, A
2
, A
3
and A
4
represents a carbon, and R
3
binds to a carbon represented by A
1
, A
2
, A
3
or A
4
.
本发明涉及一种具有与淀粉样物质亲和性的化合物,其在正常组织中具有足够快速的清除速度,并且毒性被抑制,例如突变原性,并且还涉及一种低毒性的阿尔茨海默病诊断剂,其中包含该化合物。该化合物由以下公式(1)或其盐表示:其中A1,A2,A3和A4独立地表示碳或氮,而R3是由以下公式表示的基团:其中R1是放射性卤素取代基;m为0到4的整数;n为0或1的整数,前提是A1、A2、A3和A4中至少有一个代表碳,而R3与由A1、A2、A3或A4表示的碳结合。