Compounds of formula (I) are active as dopaminergic compounds or as compounds which or as compounds which diminish the symptoms of dopamine deficiency: wherein: R
1
and R
2
are independently selected from —C(═O)R
5
or —C(═O)OR
5
; or one of R
1
and R
2
is hydrogen and the other is —C(═O)R
5
or —C(═O)OR
5
; R
3
and R
4
are independently selected from hydrogen, optionally substituted C
1
-C
6
alkyl, C
3
-C
6
cycloalkyl, C
2
-C
6
alkenyl, or C
2
-C
6
alkynyl, —CH2Q, —C(═O)R
5
, —C(═O)OR
5
, —C(═O)NR
5
R
6
, or R
5
is hydrogen or optionally substituted C
1
-C
6
alkyl or —CH
2
Q; R
6
is hydrogen or optionally substituted C
1
-C
6
alkyl Or —CH
2
Q; and Q is an optionally substituted monocyclic carbocyclic or heterocyclyl ring of 3 to 6 ring atoms.
[EN] Compounds of formula (I) are active as dopaminergic compounds or as compounds which or as compounds which diminish the symptoms of dopamine deficiency.: wherein: R1 and R2 are independently selected from -C(=O)R5 or -C(=O)OR5; or one of R1 and R2 is hydrogen and the other is -C(=O)R5 or -C(=O)OR5; R3 and R4 are independently selected from hydrogen, optionally substituted C1-C6 alkyl, C3-C6 cycloalkyl, C2-C6 alkenyl, or C2-C6 alkynyl, -CH2Q, -C(=O)R5, -C(=O)OR5, - C(=O)NR5R6, or R5 is hydrogen or optionally substituted C1-C6 alkyl or -CH2Q; R6 is hydrogen or optionally substituted C1-C6 alkyl Or -CH2Q; and Q is an optionally substituted monocyclic carbocyclic or heterocyclyl ring of 3 to 6 ring atoms. [FR] Les composés de formule (I) selon l'invention ont une activité dopaminergique ou diminuent les symptômes de la déficience en dopamine : où : R1 et R2 sont indépendamment sélectionnés parmi -C(=O)R5 ou -C(=O)OR5 ; ou l'un des groupements R1 et R2 représente un atome d'hydrogène et l'autre représente -C(=O)R5 ou -C(=O)OR5 ; R3 et R4 sont indépendamment sélectionnés parmi l'atome d'hydrogène et les groupements éventuellement substitués alkyle en C1-C6, cycloalkyle en C3-C6, alcényle en C2-C6 et alcynyle en C2-C6, -CH2Q, -C(=O)R5, -C(=O)OR5, - C(=O)NR5R6, ou R5 représente un atome d'hydrogène ou un groupement éventuellement substitué alkyle en C1-C6 ou -CH2Q ; R6 représente un atome d'hydrogène ou un groupement éventuellement substitué alkyle en C1-C6 ou -CH2Q ; et Q représente un groupement carbocyclique ou hétérocyclique monocyclique éventuellement substitué comportant entre 3 et 6 chaînons.
Design, synthesis and biological evaluation of l-dopa amide derivatives as potential prodrugs for the treatment of Parkinson’s disease
作者:Tao Zhou、Robert C. Hider、Peter Jenner、Bruce Campbell、Christopher J. Hobbs、Sarah Rose、Mark Jairaj、Kayhan A. Tayarani-Binazir、Alexander Syme
DOI:10.1016/j.ejmech.2010.05.062
日期:2010.9
A range of amide derivatives of l-dopa were synthesized and investigated for their pharmacological activity and their ability to be converted to l-dopa using the unilaterally 6-hydroxydopamine (6-OHDA)-lesioned rat, as an experimental model of Parkinson’s disease. The diacetyl derivative of l-dopa amide (11b) was found to be more active than l-dopa after its oral administration and generated plasma