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Ramiprilat, the active metabolite of Ramipril, is a dipeptide that functions as an angiotensin-converting enzyme (ACE) inhibitor. It plays a crucial role in suppressing the conversion of angiotensin I to angiotensin II and the degradation of bradykinin, thus preventing vasoconstriction. Ramiprilat also interferes with the targeting of B2 kinin receptors to endothelial cell membranes, further inhibiting bradykinin signaling. With its cardioprotective effects demonstrated in both animal models and clinical studies, Ramiprilat is also reported to inhibit matrix metalloproteinase-3 and -9 activity in isolated Crohn’s disease fistulas. It is a white to off-white solid and is used to treat high blood pressure and congestive heart failure.

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  • 87269-97-4 Structure
  • Basic information

    1. Product Name: Ramiprilat
    2. Synonyms: RAMIPRILAT;RAMIPRILAT HYDRATE;Ramiprilat, ammonium salt;(2S,3aS,6aS)-1-[(2S)-2-[[(1S)-1-Carboxy-3-phenylpropyl]amino]-1-oxopropyl]octahydrocyclopenta[b]pyrrole-2-carboxylic Acid;HOE 498 Diacid;Ramipril Diacid;(2S,3aS,6aS)-1-((S)-N-((S)-1-Carboxy-3-phenylpropyl)alanyl)tetrahydrocyclopenta[b]pyrrole-2-carboxylic acid;(2S,3aS,6aS)-1-[(S)-N-[(S)-1-Carboxy-3-phenylpropyl]alanyl]octahydrocyclopenta[b]pyrrole-2-carboxylic acid
    3. CAS NO:87269-97-4
    4. Molecular Formula: C21H28N2O5
    5. Molecular Weight: 388.46
    6. EINECS: N/A
    7. Product Categories: Various Metabolites and Impurities;Intermediates & Fine Chemicals;Metabolites & Impurities;Pharmaceuticals
    8. Mol File: 87269-97-4.mol
  • Chemical Properties

    1. Melting Point: 139-141°C
    2. Boiling Point: 632.2 °C at 760 mmHg
    3. Flash Point: 336.2 °C
    4. Appearance: white to off-white solid
    5. Density: 1.273 g/cm3
    6. Vapor Pressure: 7.47E-17mmHg at 25°C
    7. Refractive Index: 1.583
    8. Storage Temp.: Refrigerator, Under Inert Atmosphere
    9. Solubility: DMSO (Slightly), Methanol (Slightly)
    10. PKA: 2.20±0.10(Predicted)
    11. Stability: Hygroscopic
    12. CAS DataBase Reference: Ramiprilat(CAS DataBase Reference)
    13. NIST Chemistry Reference: Ramiprilat(87269-97-4)
    14. EPA Substance Registry System: Ramiprilat(87269-97-4)
  • Safety Data

    1. Hazard Codes: Xi
    2. Statements: 36/38
    3. Safety Statements: 26-37/39
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 87269-97-4(Hazardous Substances Data)

87269-97-4 Usage

Uses

Used in Pharmaceutical Industry:
Ramiprilat is used as an active metabolite of Ramipril for its role as an angiotensin-converting enzyme (ACE) inhibitor. It is utilized for treating high blood pressure and congestive heart failure due to its ability to suppress the conversion of angiotensin I to angiotensin II and the degradation of bradykinin, thereby preventing vasoconstriction.
Used in Cardiovascular Health:
Ramiprilat is used as a cardioprotective agent in both animal models and clinical studies. Its role in inhibiting matrix metalloproteinase-3 and -9 activity in isolated Crohn’s disease fistulas contributes to its effectiveness in managing cardiovascular health.
Used in Stroke Prevention:
Ramiprilat is used as a preventive measure for stroke, as it helps in managing blood pressure and reducing the risk of cardiovascular events that can lead to stroke.
Used in Dialysis Management:
Ramiprilat is used to reduce the need for dialysis among patients who were previously on angiotensin-converting-enzyme inhibitors, thus improving the overall management of renal health in such patients.

in vitro

pretreatment with ramiprilat could significantly attenuate the recovery of b2 kinin receptors in while increasing that from membranes lacking caveolin, and such effect was not because of the inhibition of bradykinin degradation. ramiprilat could also decrease [3h]bradykinin binding to cr membranes. in addition, ramiprilat treatment led to reactivation of the b2 receptor in bradykinin-stimulated cells [1].

in vivo

in previous animal study, when compared with the control rats, diabetic rats showed decreased creatinine clearance rate, increased urinary protein excretion and blood pressure, as well as development of tubulointerstitial fibrosis, glomerulosclerosis, and inflammatory cell infiltration. furthermore, the blocking angiotensin ii with ramipril (the prodrug of ramiprilat) was able to significantly improve all of these parameters [2].

references

[1] t. benzing, i. fleming, a. blaukat, et al. angiotensin-converting enzyme inhibitor ramiprilat interferes with the sequestration of the b2 kinin receptor within the plasma membrane of native endothelial cells. circulation 99(15), 2034-2040 (1999).[2] li c, yang cw, park cw, ahn hj, kim wy, yoon kh, suh sh, lim sw, cha jh, kim ys, kim j, chang ys, bang bk. long-term treatment with ramipril attenuates renal osteopontin expression in diabetic rats. kidney int. 2003 feb;63(2):454-63.[3] warner gt, perry cm. ramipril: a review of its use in the prevention of cardiovascular outcomes. drugs. 2002;62(9):1381-405.

Check Digit Verification of cas no

The CAS Registry Mumber 87269-97-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,2,6 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87269-97:
(7*8)+(6*7)+(5*2)+(4*6)+(3*9)+(2*9)+(1*7)=184
184 % 10 = 4
So 87269-97-4 is a valid CAS Registry Number.
InChI:InChI=1/C21H28N2O5/c1-13(22-16(20(25)26)11-10-14-6-3-2-4-7-14)19(24)23-17-9-5-8-15(17)12-18(23)21(27)28/h2-4,6-7,13,15-18,22H,5,8-12H2,1H3,(H,25,26)(H,27,28)/t13-,15-,16-,17-,18-/m0/s1

87269-97-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name ramiprilat

1.2 Other means of identification

Product number -
Other names 2-[N-((S)-1-carboxy-3-phenylpropyl)-L-alanyl]-(1S,3S,5S)-2-azabicyclo[3.3.0]octane-3-carboxylic acid

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:87269-97-4 SDS

87269-97-4Upstream product

87269-97-4Downstream Products

87269-97-4Relevant articles and documents

Stress degradation studies of ramipril by a validated stability-indicating liquid chromatographic method

De Diego,Godoy,Mennickent,Olivares,Godoy

, p. 450 - 453 (2010)

Ramipril is an angiotensin-converting enzyme inhibitor which has chemical structure susceptible to degradation, therefore in this work forced degradation studies of ramipril were carried out by a developed and validated stability-indicating liquid chromat

Two validated stability-indicating chromatographic methods for the separation of two anti-hypertensive combinations in the presence of their degradation products or impurities

Samy Mostafa, Noha,AbdElHamid, Ghada,Elsayed Zaazaa, Hala,Mohamed Amer, Sawsan

, p. 2427 - 2439 (2019/07/16)

Two RP-HPLC methods were developed, optimized, and validated for the determination of two different anti-hypertensive combinations in the presence of their degradation products or impurities and in their pharmaceutical formulations. The first mixture is Ramipril (RAM) in combination with Amlodipine besylate (AML) [mixture I], while the second one is a combination of Ramipril (RAM), Atorvastatin (ATV), and Aspirin (ASP) [mixture II].The proposed combinations were successfully separated on X-bridge C18column (250 × 4.6?mm i.d, 5?μm p.s.), using a mobile phase of 0.05?M phosphate buffer-acetonitrile-THF (60:40:0.1% by volume) pH 2.5 and an isocratic mobile phase formed of acetonitrile-0.05?M phosphate buffer-THF (60:40:0.1% by volume) pH 2.5 for mixture (I) and (II) at a flow rate of 1?mL/min and 1.2?mL/min, respectively. The compromising components of the mixtures were detected at 218?nm. For the best separation of the mentioned components different parameters were examined and optimized. The two suggested methods were validated in compliance with the ICH guidelines and were successfully applied for the quantification of the cited components in presence of their obtained degradation products as well as in their commercial pharmaceutical formulations. For both methods the obtained results were statistically analyzed and compared to those of the official and reported methods; using Student’s t test and F test showing no significant difference with high accuracy and good precision.

In vitro drug metabolism by human carboxylesterase 1: Focus on angiotensin-converting enzyme inhibitors

Thomsen, Ragnar,Rasmussen, Henrik B.,Linnet, Kristian

, p. 126 - 133 (2014/01/06)

Carboxylesterase 1 (CES1) is the major hydrolase in human liver. The enzyme is involved in the metabolism of several important therapeutic agents, drugs of abuse, and endogenous compounds. However, no studies have described the role of human CES1 in the activation of two commonly prescribed angiotensinconverting enzyme inhibitors: enalapril and ramipril. Here, we studied recombinant human CES1-and CES2-mediated hydrolytic activation of the prodrug esters enalapril and ramipril, compared with the activation of the known substrate trandolapril. Enalapril, ramipril, and trandolapril were readily hydrolyzed by CES1, but not by CES2. Ramipril and trandolapril exhibited Michaelis-Menten kinetics, while enalapril demonstrated substrate inhibition kinetics. Intrinsic clearances were 1.061, 0.360, and 0.02 ml/min/mg protein for ramipril, trandolapril, and enalapril, respectively. Additionally, we screened a panel of therapeutic drugs and drugs of abuse to assess their inhibition of the hydrolysis of p-nitrophenyl acetate by recombinant CES1 and human liver microsomes. The screening assay confirmed several known inhibitors of CES1 and identified two previously unreported inhibitors: the dihydropyridine calcium antagonist, isradipine, and the immunosuppressive agent, tacrolimus. CES1 plays a role in the metabolism of several drugs used in the treatment of common conditions, including hypertension, congestive heart failure, and diabetes mellitus; thus, there is a potential for clinically relevant drug-drug interactions. The findings in the present study may contribute to the prediction of such interactions in humans, thus opening up possibilities for safer drug treatments. Copyright

Captopril inhibits the oxidative modification of apolipoprotein B-100 caused by myeloperoxydase in a comparative in vitro assay of angiotensin converting enzyme inhibitors

Van Antwerpen, Pierre,Legssyer, Ilham,Zouaoui Boudjeltia, Karim,Babar, Sajida,Moreau, Patrick,Moguilevsky, Nicole,Vanhaeverbeek, Michel,Ducobu, Jean,Neve, Jean

, p. 31 - 36 (2007/10/03)

The oxidative modification of low-density lipoproteins (LDL) is a key event in the formation of atheromatous lesions. Indeed, oxidized derivatives accumulate in the vascular wall and promote a local inflammatory process which triggers the progression of the atheromatous plaque. Myeloperoxidase (MPO) has been mentioned as a major contributor to this oxidative process. It takes part in the oxidation both of lipids by chlorination and peroxidation and of apolipoprotein B-100. Based on recent observations with several anti-inflammatory and thiol-containing drugs, the present study was designed to test the hypothesis that anti-hypertensive agents from the angiotensin converting enzyme (ACE) inhibitors group inhibit the oxidative modifications of Apo B-100 caused by MPO. Captopril, ramipril, enalapril, lisinopril and fosinopril were assessed by measuring: their inhibiting effect on the MPO / H2O2 / Cl- system, the accumulation of compound II, which reflects the inhibition of the synthesis of HOCl and the LDL oxidation by MPO in presence of several concentrations of ACE inhibitors. Only captopril, a thiol-containing ACE inhibitor, was able to significantly decrease the oxidative modification of LDL in a dose dependent manner and this by scavenging HOCl. This efficient anti-hypertensive drug therefore appears to also protect against the atherosclerotic process by this newly documented mechanism.

Rapid conversion of the new angiotensin converting enzyme inhibitor ramipril to its active metabolite in rats

Tabata,Yamazaki,Ohtake,Hayashi

, p. 865 - 867 (2007/10/02)

The rate of conversion of ramipril (Hoe 498), a new angiotensin converting enzyme (ACE) inhibitor, to its active metabolite was compared with that of enalapril. After intravenous administration to rats, ramipril was very rapidly desterified to its active moiety, ramiprilat. The ratio of the active metabolite level to the prodrug level in plasma at 5 min after administration was 10.7 for ramipril, which was about 5 times the ratio for enalapril. The in vitro conversion rates of ramipril were higher than those of enalapril in all rat tissue homogenates examined, including the liver, a main site of metabolism. The apparent Km values of ramipril and enalapril in the liver were 190 and 710 μmol/l, respectively, suggesting that ramipril has a higher affinity for esterase than enalapril. In conclusion, ramipril was superior to enalapril in efficiency of conversion to the active metabolite.

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