TABLE 1.

LogP and Binding Affinities

CompoundsHPLC LogPBinding affinities
Tau aggregates*Amyloid aggregatesMAO-AMAO-B
SNFT-11.340.84>1,000>1,000>1,000
MK-62402.110.64>1,000>1,000>1,000
PM-PBB32.0028.4 (14.4 nM)12.8>1,000>1,000
PI-26201.341.32>1,000>1,000>1,000
JNJ-0672.381.07>1,00056858.9
RO9481.191.63>1,000>1,000249
THK-53511.2819.0771>1,0005.2
Flortaucipir1.650.28>1,0008.855.3
T8081.962.16>1,000>1,000>1,000
FDDNP3.68693902>1,0006.5
  • * [18F]MK-6240 (2.3 nM) was used as radioligand.

  • [18F]PM-PBB3 (2.5 nM) was used as radioligand.

  • HPLC = high-performance liquid chromatography.

  • Binding affinities are IC50 (nM).