Disclosed are: labeled NSAIDs compounds which can be produced within a short time, can be used suitably for a PET method, and enable the imaging of cyclooxygenase-2; and a process for producing the labeled NSAIDs compounds. Specifically disclosed are isotope-labeled 2-arylpropionic acid compounds, each of which is a compound represented by general formula (1) (wherein Ar represents an aryl group which may have a substituent; R
1
represents anyone selected from
11
CH
3
, CH
2
18
F and CF
2
18
F; and R
2
represents a hydrogen atom, or an alkyl group which may have a branch, wherein a compound wherein Ar is a benzene ring, R
1
is
11
CH
3
, and R
2
is a hydrogen atom is excluded), or a pharmaceutically acceptable salt, hydrate, solvate or prodrug thereof.
披露了:标记的N
SAIDs化合物可以在短时间内生产,适用于PET方法,并能够成像环
氧合酶-2;以及制备标记的N
SAIDs化合物的方法。具体披露的是同位素标记的2-芳基
丙酸化合物,每个化合物都是由通式(1)表示的化合物(其中Ar代表可能具有取代基的芳基;R1代表从11CH3、CH218F和
CF218F中选择的任一种;R2代表
氢原子,或可能具有支链的烷基,其中Ar为
苯环,R1为11CH3,R2为
氢原子的化合物被排除),或其药用可接受的盐、
水合物、溶剂合物或前药。