Quinapril-d5 is intended for use as an internal standard for the quantification of quinapril by GC- or LC-MS. Quinapril is a prodrug form of the angiotensin converting enzyme (ACE) inhibitor quinaprilat. In vivo, quinapril reduces mean arterial pressure in renal hypertensive and spontaneously hypertensive rats. It inhibits angiotensin I-induced pressor responses in normotensive rats and dogs. Quinapril prevents left ventricular heart failure in CHF 14.6 cardiomyopathic hamsters. Formulations containing quinapril have been used in the treatment of hypertension, heart failure, and diabetic nephropathy.
Macitentan n-butyl analogue, a derivative of Macitentan, functions as an orally active dual antagonist targeting both endothelin ETA and ETB receptors. This compound shows promise for treating idiopathic pulmonary fibrosis (IPF) and pulmonary arterialhypertension (PAH), leveraging its non-peptide structure for potential therapeutic applications.
Chlorthalidone impurity G is a potential impurity found in commercial preparations of chlorthalidone that has moderate antihypertensive effects. Chlorthalidone is a thiazide-like diuretic that inhibits the Na+/Cl- cotransporter in the distal convoluted tubule of the kidney, which prevents reabsorption of sodium and chloride leading to a reduction in plasma volume and cardiac output. It also inhibits carbonic anhydrase (CA), including the isoforms CAVB, VII, IX, XII, and XIII (Kis = 2.8-23 nM) and, to a lesser extent, CAI, CAII, IV, VA, and VI (Kis = 138-1,347 nM), which may mediate its sustained vasodilatory activity. Dietary administration of chlorthalidone (8 mg per animal per day) reduces arterialhypertension and prevents or reduces ventricular hypertrophy induced by deoxycorticosterone acetate (DOCA) in salt-hypertensive rats. Formulations containing chlorthalidone have been used alone or in combination with other antihypertensive agents to lower arterial blood pressure and as adjuvants to address edema caused by cardiac or renal disorders.
Selexipag Active Metabolite-d7 是 Selexipag Active Metabolite 的氘代化合物。Selexipag Active Metabolite 的 CAS 号为 475085-57-5。MRE269 是一种口服的长效前列环素受体激动剂前药,是 Selexipag 的活性代谢物,用于治疗肺动脉高压。
RB-005 is a potent sphingosine kinase isoform 1 (SK1) inhibitor, which may serve as therapeutic agent for proliferative diseases, including hypertension. RB-005, (IC(50) = 3.6 μM), which also induced proteasomal degradation of SK1 in human pulmonary arterial smooth muscle cells.
Cefminox (Sodium) is a new cephamycin antibiotic possessing a D-amino acid moiety derived from D-cysteine at the C-7B side chain. Cefminox is active against a wide range of bacteria, especially Gram-negative and anaerobic bacteria. Cefminox shows excellent in vivo efficacy (ED50) which is higher than would be expected from its in vitro activity (MIC). Moreover, cefminox possesses more potent activity in suppression of bacterial regrowth than other cephems[1]. Cefminox (Sodium) was the most active beta-lactam, with an MIC at which 50% of isolates are inhibited (MIC50) of 1.0 microg/ml and an MIC90 of 16.0 microg/ml. Cefminox was especially active against Bacteroides fragilis (MIC90, 2.0 microg/ml), Bacteroides thetaiotaomicron (MIC90, 4.0 microg/ml), fusobacteria (MIC90, 1.0 microg/ml), peptostreptococci (MIC90, 2.0 microg/ml), and clostridia, including Clostridium difficile (MIC90, 2.0 microg/ml)[2]. The use of a single preoperative dose of cefminox was similar in efficacy to 3 doses of cefoxitin administered every 4 hours, and that the serum and tissue concentrations attained provide adequate antibiotic coverage[3]. Moreover, cefminox as a dual agonist of IP (Prostacyclin receptor) and PPARγ (peroxisome proliferator-activated receptor-gamma) that significantly inhibits PASMC proliferation by up-regulation of PTEN (phosphatase and tensin homolog) and cAMP ( cyclic adenosine monophosphate), suggesting that it has potential for treatment of PAH(pulmonary arterialhypertension)[4].
Apelin biased agonist; exhibits bias for the G protein pathway. Stimulates endothelial NOS phosphorylation and expression, promotes proliferation, and attenuates apoptosis of human pulmonary arterial endothelial cells in vitro. Shows positive inotropic an