Structure-activity relationships in prazosin-related compounds. 2. Role of the piperazine ring on .alpha.-blocking activity
摘要:
Several prazosin-related compounds have been synthesized and evaluated for their blocking activity toward a-adrenoreceptors. The structural modification performed on the prazosin structure included the replacement of the piperazine ring with 2,3-dialkylpiperazine or 1,2-cyclohexanediamine moieties to characterize a lipophilic binding pocket in the alpha1-adrenoreceptor surface. Cyclohexanediamine derivatives 3-6 were almost devoid of potency and selectivity, whereas dialkylpiperazine compounds 7-14 showed high affinity and selectivity toward alpha1-adrenoreceptors. The cis derivative 13 (cyclazosin) was the most potent and selective with an alpha1/alpha2 selectivity ratio value of 7800. The particular trend of antagonist activity within cis/trans stereoisomeric compounds not only supports the presence of a lipophilic binding area on alpha1-adrenoreceptor surface but also suggests that the lipophilic pocket is endowed with a well-defined size and spatial orientation. The most active compound of the series, 13, was tested also in vivo for antihypertensive activity on spontaneously hypertensive rats. It showed an interesting long-lasting hypotensive effect, very similar to that of doxazosin, which was statistically significant 12 h after oral administration.
申请人:Stichting Het Nederlands Kanker Instituut-
Antoni van Leeuwenhoek Ziekenhuis
公开号:EP3875452A1
公开(公告)日:2021-09-08
Provided are compounds of formula (I), or a pharmaceutically acceptable salt or solvate thereof:
Also provided are compositions comprising compounds of formula (I). The compounds and compositions are also provided for use as medicaments, for example as medicaments useful in the treatment of a condition modulated by monoacylglycerol lipase (MAGL). Also provided are the use of compounds and compositions for the inhibition of monoacylglycerol lipase (MAGL).
Piperazine urea derivatives for the treatment of endometriosis
申请人:Kaufmann Ulrike
公开号:US20080119471A1
公开(公告)日:2008-05-22
Use of a compound of the following formula (Ia):
for the production of a medicament for the treatment of endometriosis in human wherein the treatment comprises administering to a human female in need of such treatment a therapeutically effective amount of said compound.
The present invention is directed to certain 2-(alkyl)-3-[2-(5-fluoro-4-pyrimidinyl)hydrazino]-3-oxopropyl}hydroxyformamide derivatives, compositions containing them, the use of such compounds in the inhibition of bacterial peptide deformylase (PDF) activity, and in the treatment of bacterial infections. Specifically, the invention is directed to compounds of formula (I):
wherein R1, R2 and R3 are defined herein and to pharmaceutically acceptable salts thereof. The compounds of this invention are bacterial peptide deformylase inhibitors and can be useful in the treatment of bacterial infections.
The present invention is directed to certain 2-(alkyl)-3-[2-(5-fluoro-4-pyrimidinyl)hydrazino]-3-oxopropyl}hydroxyformamide derivatives, compositions containing them, the use of such compounds in the inhibition of bacterial peptide deformylase (PDF) activity, and in the treatment of bacterial infections. Specifically, the invention is directed to compounds of formula (I):
wherein R1, R2 and R3 are defined herein and to pharmaceutically acceptable salts thereof. The compounds of this invention are bacterial peptide deformylase inhibitors and can be useful in the treatment of bacterial infections.
Phenoxyacetic Acid Derivatives Useful for Treating Respiratory Diseases
申请人:Alcaraz Lilian
公开号:US20090149448A1
公开(公告)日:2009-06-11
The invention relates to substituted phenoxyacetic acids as useful pharmaceutical compounds for treating respiratory disorders, pharmaceutical compositions containing them, and processes for their preparation.