M. Froimowitz et al., FURTHER EVIDENCE FOR A DOPAMINE REUPTAKE PHARMACOPHORE - THE EFFECT OF N-METHYLATION ON THREO-METHYLPHENIDATE AND ITS ANALOGS, Bioorganic & medicinal chemistry letters, 7(9), 1997, pp. 1213-1218
N-methyl derivatives of methylphenidate and four analogs were synthesi
zed and assayed for affinity at the dopamine transporter. The binding
affinities of the N-methyl compounds were consistently lower by a fact
or ranging from 4 to 30 as compared with the corresponding secondary a
mine. This is consistent with the predictions of a pharmacophore model
of compounds that bind to the dopamine transporter. (C) 1997 Elsevier
Science Ltd.