Spirapril

CAS No:
83647-97-6 Categories: , ,
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Product Details:

  • CAS No: 83647-97-6
  • AHFC code:
  • Synonyms:
  • ATC Code: C09AA11
  • Chemical Formula: C10H12N2O4
  • Molecular Weight: 466.614
  • Assay/Purity: Typically NLT 98%
  • DrugBank: DB01348
  • SMILES: CCOC(=O)[C,H](CCC1=CC=CC=C1)N[C,,H](C)C(=O)N1CC2(C[C,H]1C(O)=O)SCCS2
  • InChl: HRWCVUIFMSZDJS-SZMVWBNQSA-N
  • PubChem: 5311447
  • IUPAC: (8S)-7-[(2S)-2-{[(2S)-1-ethoxy-1-oxo-4-phenylbutan-2-yl]amino}propanoyl]-1,4-dithia-7-azaspiro[4.4]nonane-8-carboxylic acid

Additional Details

Indication:
Spirapril is an ACE inhibitor class drug used to treat hypertension.
Pharmacodynamics:
Spirapril is an angiotensin-converting enzyme (ACE) inhibitor. ACE is a peptidyl dipeptidase that catalyzes the conversion of angiotensin I to the vasoconstrictor substance, angiotensin II. By blocking ACE, spirapril decreases angiotensin II which is a vasoconstrictor and inducer of aldosterone. So by inhibiting the enzymes, aldosterone secreation is decreased (so less sodium is reabsorbed) and there is a decrease in vasoconstriction. Combined, this leades to a decrease in blood pressure.
Mode of Action:
Spiraprilat, the active metabolite of spirapril, competes with angiotensin I for binding at the angiotensin-converting enzyme, blocking the conversion of angiotensin I to angiotensin II. Inhibition of ACE results in decreased plasma angiotensin II. As angiotensin II is a vasoconstrictor and a negative-feedback mediator for renin activity, lower concentrations result in a decrease in blood pressure and stimulation of baroreceptor reflex mechanisms, which leads to decreased vasopressor activity and to decreased aldosterone secretion. Spiraprilat may also act on kininase II, an enzyme identical to ACE that degrades the vasodilator bradykinin.
Metabolism:
Hepatic. Converted to spiraprilat following oral administration.
Toxicity:
General Reference:
Hannedouche T, Ikeni A, Marques LP, Natov S, Dechaux M, Schmitt F, Lacour B, Grunfeld JP: Renal effects of angiotensin II in normotensive subjects on short-term cilazapril treatment. J Cardiovasc Pharmacol. 1992;19 Suppl 6:S25-7. Pubmed Noble S, Sorkin EM: Spirapril. A preliminary review of its pharmacology and therapeutic efficacy in the treatment of hypertension. Drugs. 1995 May;49(5):750-66. Pubmed Rosendorff C, Patton J, Radford HM, Kalliatakis B: Alpha-adrenergic and angiotensin II pressor sensitivity in hypertensive patients treated with an angiotensin-converting enzyme inhibitor. J Cardiovasc Pharmacol. 1992;19 Suppl 6:S105-9. Pubmed Shohat J, Wittenberg C, Erman A, Rosenfeld J, Boner G: Acute and chronic effects of spirapril, alone or in combination with isradipine on kidney function and blood pressure in patients with reduced kidney function and hypertension. Scand J Urol Nephrol. 1999 Feb;33(1):57-62. Pubmed
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