The present invention provides novel alpha-fluoroalkyl compounds having structure I and the corresponding dihydrotetrabenazine compounds IV
wherein R
1
is a C
1
-C
10
fluorinated aliphatic radical; R
2
is hydrogen or a C
1
-C
10
aliphatic radical; and R
3
is hydrogen or a C
1
-C
10
aliphatic radical. The alpha-fluoroalkyl compounds are provided in both racemic and enantiomerically enriched forms and may comprise either or both of fluorine-18 and fluorine 19. The alpha-fluoroalkyl compounds are shown to possess high affinity for VMAT-2, a biomarker implicated in human diabetes. The alpha-fluoroalkyl compounds comprising a fluorine-18 group are useful as PET imaging agents targeting the VMAT-2 biomarker. The non-radiolabled alpha-fluoroalkyl compounds are useful as probes for the discovery of PET imaging agents.
本发明提供了具有结构I的新型α-氟烷基化合物和相应的二氢四
苯乙烯化合物IV,其中R1是C1-C10
氟化脂肪基;R2是氢或C1-C10脂肪基;R3是氢或C1-C10脂肪基。α-氟烷基化合物以外消旋和对映富集形式提供,并且可以包括
氟-18和
氟-19中的任意一个或两个。已证明α-氟烷基化合物具有高亲和力VMAT-2,这是与人类糖尿病有关的
生物标志物。含
氟-18基团的α-氟烷基化合物可用作PET成像剂,以靶向VMAT-2
生物标志物。非放射性标记的α-氟烷基化合物可用作探针,用于发现PET成像剂。