A series of 1-[3-(acylthio)-3-aroylpropionyl]-L-proline derivatives was synthesized. A number of these compounds are potent angiotensin converting enzyme (ACE) inhibitors that lowered blood pressure in aorta-coarcted renal hypertensive rats. The most active derivatives are 1-[3(R)-(acetylthio) -3-substituted-benzoyl)-2(S)-methyl-propionyl]-L-prolines with an in vivo activity equivalent to SQ 14,225 (captopril). Structure-activity relationships are discussed. Changes in the configuration of the alpha-methyl group and the S-acetyl group affect the ACE activity. Coupling of 3-(substituted-benzoyl)-2-methylpropionic acids to L-proline via enol lactones is described.
This disclosure describes novel substituted .omega.-aroyl(propionyl or butyryl)-L-prolines and the esters and cationic salts thereof which are useful as hypotensive agents in mammals.
INDOLE CARBOXAMIDE DERIVATIVES AS P2X7 RECEPTOR ANTAGONIST
申请人:ACTELION PHARMACEUTICALS LTD
公开号:US20150322008A1
公开(公告)日:2015-11-12
The invention relates to indole carboxamide derivatives of formula (I),
wherein R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are as defined in the description, their preparation and their use as pharmaceutically active compounds.