申请人:National Institutes for Quantum and Radiological Science and Technology
公开号:US10604516B2
公开(公告)日:2020-03-31
The present invention provides a compound represented by the following formula (I), a pharmaceutically acceptable salt thereof, or a solvate thereof.
wherein:
R1 and R2 are each separately selected from the group consisting of hydrogen, alkyl, alkenyl, acyl, and hydroxyalkyl;
R3 is hydrogen or halogen;
ring A is a benzene ring or a pyridine ring;
ring B is selected from the group consisting of the following formulas (i), (ii), (iii), and (iv):
in the formula (ii), Ra is alkyl;
R4 and R5 are each separately selected from the group consisting of hydrogen, hydroxy, alkoxy, haloalkoxy, halohydroxyalkoxy, and aminoalkyl; and
[Formula 3]
represents a double bond or a triple bond. The above compound can be used as a molecular probe for imaging tau proteins that accumulate in the brain.
本发明提供了由下式(I)代表的化合物、其药学上可接受的盐或其溶液。
其中
R1 和 R2 分别选自由氢、烷基、烯基、酰基和羟烷基组成的组;
R3 是氢或卤素
环 A 是苯环或吡啶环;
环 B 选自下式 (i)、(ii)、(iii) 和 (iv) 所组成的组:
在式(ii)中,Ra 是烷基;
R4 和 R5 分别选自由氢、羟基、烷氧基、卤代烷氧基、卤代羟基烷氧基和氨基烷基组成的组;以及
[式 3]
代表双键或三键。上述化合物可用作分子探针,对大脑中积累的 tau 蛋白进行成像。