Design and Synthesis of a Novel L-Dopa−Entacapone Codrug
摘要:
A novel codrug, in which L-Dopa and entacapone are linked via a biodegradable carbamate spacer to form a single chemical entity, was synthesized and studied kinetically. This carbamate codrug provides adequate stability [t(1/2) = 12.1 h (pH 1.2); 1.4 h (pH 5.0); 1.1 h (pH 7.4)] against chemical hydrolysis but rapidly hydrolyzes to L-Dopa and entacapone in liver homogenate (t(1/2) = 7 min; pH 7.4) at 37 degreesC. The therapeutical potential of this novel codrug is discussed.
The compound 3,3-dimethyl-butyric acid 4-((S)-2-amino-2-methoxycarbonyl-ethyl)-2-(3,3-dimethyl-butyryloxy)-phenyl ester of formula (I) has dopaminergic properties.