N. Cabedo et al., SYNTHESIS AND DOPAMINE-RECEPTOR SELECTIVITY OF THE BENZYLTETRAHYDROISOQUINOLINE, (R)-(-NOR-ROEFRACTINE()), Journal of natural products, 61(6), 1998, pp. 709-712
(R)-(f)-nor-Roefractine (1) was synthesized by the Bischler-Napieralsk
i route, using asymmetric reduction of the 1,2-didehydro precursor imi
ne with sodium (S)-N-CBZ-prolinyloxyborohydride. Compound 1 was able t
o displace [H-3]-raclopride (a D-2 dopamine receptor-selective ligand)
from its specific binding sites in rat striatum with selectivity vs [
H-3]-SCH23390 (D-1 dopamine receptor-selective ligand).