Hp. Wang et al., SYNTHESIS AND PHARMACOLOGICAL ACTIVITIES OF A NOVEL TRIPEPTIDE MIMETIC DOPAMINE PRODRUG, Bioorganic & medicinal chemistry letters, 5(19), 1995, pp. 2195-2198
D-p-hydroxyphenylglycine-L-proline was attached to L-dopa as delivery
tool for improving the oral absorption. This tripeptide prodrug 1 of d
opamine was well absorbed in a perfusion study in rat intestine, devoi
d of dopamine-like side effects on isolated smooth muscles and signifi
cantly inhibited the (+)-methamphetamine-induced rotation in nigrostri
atal-lesioned rats, suggesting of anti-Parkinsonism effect.