Olmesartan medoxomil

• CAT Number: A000330
• CAS Number: 144689-63-4
• Molecular Formula: C29H30N6O6
• Molecular Weight: 558.59
• Purity: ≥95%
• Synonyms: (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 5-(2-hydroxypropan-2-yl)-2-propyl-3-[[4-[2-(2H-tetrazol-5-yl)phenyl]phenyl]methyl]imidazole-4-carboxylate
• InChI: InChI=1S/C29H30N6O6/c1-5-8-23-30-25(29(3,4)38)24(27(36)39-16-22-17(2)40-28(37)41-22)35(23)15-18-11-13-19(14-12-18)20-9-6-7-10-21(20)26-31-33-34-32-26/h6-7,9-14,38H,5,8,15-16H2,1-4H3,(H,31,32,33,34)
• InChIKey: UQGKUQLKSCSZGY-UHFFFAOYSA-N
• SMILES: CCCC1=NC(=C(N1CC2=CC=C(C=C2)C3=CC=CC=C3C4=NNN=N4)C(=O)OCC5=C(OC(=O)O5)C)C(C)(C)O

Olmesartan medoxomil is a potent and selective angiotensin AT1 receptor inhibitor with IC50 of 66.2 μM.
Inhibition of Arachidonic acid (AA) metabolism by angiotensin II receptor blockers (ARBs) is detected in a concentration-dependent manner with IC50 of Olmesartan (66.2 μM)[1]. Olmesartan medoxomil (OLM) is a potent and selective angiotensin AT1 receptor blocker[2].
The efficacy of Olmesartan (20 mg/kg) studied in db/db diabetic mice for a period of 12 weeks starting from week 10 to 12 of age. The db/db mice have 11.7 fold increased albuminuria in comparison to control mice at week 22 to 24 of age. Twelve weeks Olmesartan administration significantly reduces albuminuria in db/db mice by 77% as compared with placebo treated db/db mice. The albumin/creatinine ratio (ACR) is increased in db/db mice in comparison to control mice by 7.1 fold and Olmesartan treatment significantly decreases ACR by 59% in db/db mice[3].

Reference

[1]. Senda A, et al. Effects of Angiotensin II Receptor Blockers on Metabolism of Arachidonic Acid via CYP2C8. Biol Pharm Bull. 2015;38(12):1975-9.
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[2]. Shah S, et al. Simultaneous Quantitative Analysis of Olmesartan Medoxomil and Amlodipine Besylate in Plasma by High-performance Liquid Chromatography Technique. J Young Pharm. 2012 Apr;4(2):88-94.
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[3]. Gu J, et al. Olmesartan Prevents Microalbuminuria in db/db Diabetic Mice Through Inhibition of Angiotensin II/p38/SIRT1-Induced Podocyte Apoptosis. Kidney Blood Press Res. 2016 Nov 21;41(6):848-864.
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