Re. Boyd et al., Synthesis and binding affinities of 4-diarylaminotropanes, a new class of delta opioid agonists, BIOORG MED, 10(10), 2000, pp. 1109-1111
A series of 4-diarylaminotropanes has been prepared. Both endo and exo dias
tereomeric forms bound to the delta opioid receptor but the endo isomers we
re more potent and selective versus the mu opioid receptor than the exo iso
mers. The most potent delta opioid agonist (14) exhibited a delta opioid K-
i of 0.2 nM and was 860-fold selective over mu. (C) 2000 Elsevier Science L
td. All rights reserved.