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Lu J, Shi Y, Li X, Liang X, Wang Y, Yuan S, Wu T. Understanding and Controlling the Formation of an N-Alkyl Impurity in Olmesartan Medoxomil: A Derivative via Michael-Type Addition between Tetrazole and Mesityl Oxide In Situ Generated from Acetone. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.0c00506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianwu Lu
- State Key Lab of New Drug & Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Pudong, Shanghai 201203, China
| | - Yinfei Shi
- State Key Lab of New Drug & Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Pudong, Shanghai 201203, China
| | - Xiao Li
- State Key Lab of New Drug & Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Pudong, Shanghai 201203, China
| | - Xiaomin Liang
- State Key Lab of New Drug & Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Pudong, Shanghai 201203, China
| | - Yinquan Wang
- State Key Lab of New Drug & Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Pudong, Shanghai 201203, China
| | - Shun Yuan
- State Key Lab of New Drug & Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Pudong, Shanghai 201203, China
| | - Taizhi Wu
- State Key Lab of New Drug & Pharmaceutical Process, Shanghai Institute of Pharmaceutical Industry, China State Institute of Pharmaceutical Industry, 285 Gebaini Road, Pudong, Shanghai 201203, China
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Al-Shdefat R. Solubility determination and solution thermodynamics of olmesartan medoxomil in (PEG-400 + water) cosolvent mixtures. Drug Dev Ind Pharm 2020; 46:2098-2104. [PMID: 33151111 DOI: 10.1080/03639045.2020.1847136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The solubility and solution thermodynamic properties of a weakly water-soluble compound olmesartan medoxomil (OLM) in binary 'polyethylene glycol (PEG-400) + water' cosolvent compositions were determined. The 'mole fraction solubility (x e)' of OLM in binary 'PEG-400 + water' cosolvent compositions and pure solvents (PEG-400 and water) was determined at 'T = 295.15-330.15 K' and 'p = 0.1 MPa'. The Hansen solubility parameter (HSP) of OLM, pure PEG-400, pure water, and binary 'PEG-400 + water' cosolvent compositions free of OLM were also predicted. The obtained x e values of OLM were correlated using 'van't Hoff, modified Apelblat, Yalkowsky-Roseman, Jouyban-Acree and Jouyban-Acree-van't Hoff' computational models with the error values of <4.0%. The maximum and minimum x e value of OLM was predicted in neat PEG-400 (1.15 × 10-2 at T = 330.15 K) and neat water (1.90 × 10-7 at T = 295.15 K), respectively. The OLM HSP was predicted to be more close with that of neat PEG-400. The x e value of OLM was found increased significantly with increase in temperature and PEG-400 mass fraction in all 'PEG-400 + water' cosolvent compositions including neat PEG-400 and neat water. An 'apparent thermodynamic analysis' studies presented an 'endothermic and entropy-driven dissolution' of OLM in all 'PEG-400 + water' cosolvent compositions including pure PEG-400 and pure water.
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Affiliation(s)
- Ramadan Al-Shdefat
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Jadara University, Irbid, Jordan
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Haq N, Iqbal M, Alanazi FK, Alsarra IA, Shakeel F. Applying green analytical chemistry for rapid analysis of drugs: Adding health to pharmaceutical industry. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2012.12.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Shakeel F, Haq N, Alanazi FK, Alsarra IA. Measurement and Correlation of Solubility of Olmesartan Medoxomil in Six Green Solvents at 295.15–330.15 K. Ind Eng Chem Res 2014. [DOI: 10.1021/ie404373n] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Faiyaz Shakeel
- Center
of Excellence in Biotechnology Research, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | - Nazrul Haq
- Center
of Excellence in Biotechnology Research, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
| | | | - Ibrahim A. Alsarra
- Center
of Excellence in Biotechnology Research, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
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Ilango K, Shiji Kumar PS. Application of a Stability-Indicating HPTLC Method for Simultaneous Quantitative Determination of Olmesartan Medoxomil and Hydrochlorothiazide in Pharmaceutical Dosage Forms. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2013; 2013:363741. [PMID: 24319604 PMCID: PMC3835193 DOI: 10.1155/2013/363741] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 09/20/2013] [Accepted: 09/20/2013] [Indexed: 06/03/2023]
Abstract
A rapid, precise, sensitive, economical, and validated high performance thin layer chromatographic method is developed for simultaneous quantification of olmesartan medoxomil and hydrochlorothiazide in combined tablet dosage form. The method used amlodipine as internal standard (IS). Chromatographic separations were achieved on silica gel 60 F254 plates using toluene-methanol-ethyl acetate-acetone (2.5 : 1 : 0.5 : 2, v/v/v/v) as mobile phase. Densitometric analysis was carried out in the reflectance mode at 258 nm. Calibration curves were linear over a range of 80-480 ng/band for olmesartan medoxomil and 25-150 ng/band for hydrochlorothiazide. The detection and quantification limits were found to be 18.12 and 56.35 ng/band for olmesartan medoxomil and 6.31 and 18.56 ng/band for hydrochlorothiazide, respectively. Intra- and interassay precision provided relative standard deviations lower than 2% for both analytes. Recovery from 99.60 to 101.22% for olmesartan medoxomil and 98.30 to 99.32% for hydrochlorothiazide show good accuracy. Both the drugs were also subjected to acid, alkali, oxidation, heat, and photodegradation studies. The degradation products obtained were well resolved from pure drugs with significantly different R f values. As the method could effectively separate the drugs from their degradation products, it can be used for stability-indicating analysis. Validation of the method was carried out as per international conference on harmonization (ICH) guidelines.
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Affiliation(s)
- Kaliappan Ilango
- Department of Pharmaceutical Chemistry, SRM College of Pharmacy, SRM University, Kattankulathur, Kancheepuram, Tamil Nadu 603 203, India
| | - Pushpangadhan S. Shiji Kumar
- Department of Pharmaceutical Chemistry, Jamia Salafiya Pharmacy College, Pulikkal, Malappuram, Kerala 673 637, India
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Kepekci Tekkeli SE, Önal A. New spectrophotometric and spectrofluorimetric methods for the determination of angiotensin II receptor antagonists in tablets and plasma. JOURNAL OF ANALYTICAL CHEMISTRY 2013. [DOI: 10.1134/s1061934813060087] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Multivariate Versus Classical Univariate Calibration Methods for Spectrofluorimetric Data: Application to Simultaneous Determination of Olmesartan Medoxamil and Amlodipine Besylate in their Combined Dosage Form. J Fluoresc 2012; 23:79-91. [DOI: 10.1007/s10895-012-1119-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Accepted: 08/03/2012] [Indexed: 10/28/2022]
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Rahman MM, Khan SB, Faisal M, Rub MA, Al-Youbi AO, Asiri AM. Electrochemical determination of olmesartan medoxomil using hydrothermally prepared nanoparticles composed SnO2-Co3O4 nanocubes in tablet dosage forms. Talanta 2012; 99:924-31. [PMID: 22967644 DOI: 10.1016/j.talanta.2012.07.060] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Revised: 07/23/2012] [Accepted: 07/25/2012] [Indexed: 11/19/2022]
Abstract
Low-dimensional nanoparticles composed SnO(2)-Co(3)O(4) nanocubes (NCs) were prepared by a hydrothermal method using reducing agents. The doped nanomaterials were investigated by UV/vis, powder X-ray diffraction, FT-IR, energy-dispersive X-ray spectroscopy (EDS), and Raman spectroscopy, and field-emission scanning electron microscopy. They were deposited on a silver electrode (AgE, surface area, 0.0216 cm(2)) to give a drug sensor with a fast response towards Olmesartan medoxomil (OSM) in 0.1 mol L(-1) phosphate buffer-phases. The sensor also exhibits higher sensitivity, long-term stability, and enhanced electrochemical response. The calibration plot is linear (r(2)=0.9948) over the 0.28 nmol L(-1)-1.4 μM OSM concentration range. The sensitivity is ~2.083 μA cm(-2) mmol L(-1) and the detection limit is 0.17 nmol L(-1) (at an SNR of 3). We discuss the possible potential uses of this nanoparticles doped semiconductor NCs in terms of drug sensing, which could also be employed for the determination of drugs in quality control of formulation.
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Affiliation(s)
- Mohammed M Rahman
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah 21589, P.O. Box 80203, Saudi Arabia.
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Raj S, Kumari KS, Rao AN, Reddy IU, Raju MN. DEVELOPMENT OF A STABILITY-INDICATING UPLC METHOD FOR DETERMINATION OF OLMESARTAN MEDOXOMIL AND ITS DEGRADATION PRODUCTS IN ACTIVE PHARMACEUTICAL INGREDIENT AND DOSAGE FORMS. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.615091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Shiva Raj
- a Department of Chemistry , Osmania University , Hyderabad , India
| | - K. Siva Kumari
- b Research and Development, Active Pharmaceutical Ingredients, Dr. Reddy's Laboratories , Hyderabad , India
| | - A. Narasimha Rao
- b Research and Development, Active Pharmaceutical Ingredients, Dr. Reddy's Laboratories , Hyderabad , India
| | - I. Ugandhar Reddy
- b Research and Development, Active Pharmaceutical Ingredients, Dr. Reddy's Laboratories , Hyderabad , India
| | - M. Naga Raju
- b Research and Development, Active Pharmaceutical Ingredients, Dr. Reddy's Laboratories , Hyderabad , India
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Darwish IA, Wani TA, Khalil NY, Al-Shaikh AA, Al-Morshadi N. Development of a novel 96-microwell assay with high throughput for determination of olmesartan medoxomil in its tablets. Chem Cent J 2012; 6:1. [PMID: 22214530 PMCID: PMC3275517 DOI: 10.1186/1752-153x-6-1] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2011] [Accepted: 01/03/2012] [Indexed: 11/10/2022] Open
Abstract
A novel 96-microwell-based spectrophotometric assay has been developed and validated for determination of olmesartan medoxomil (OLM) in tablets. The formation of a colored charge-transfer (CT) complex between OLM as a n-electron donor and 2, 5-dichloro-3, 6-dihydroxy-1, 4-benzoquinone (p-chloranilic acid, pCA) as a π-electron acceptor was investigated, for the first time, and employed as a basis in the development of the proposed assay. The proposed assay was carried out in 96-microwell plates. The absorbance of the colored-CT complex was measured at 490 nm by microwell-plate absorbance reader. The optimum conditions of the reaction and the analytical procedures of the assay were established. Under the optimum conditions, linear relationship with good correlation coefficient was found between the absorbance and the concentration of OLM in the range of 1-200 μg ml-1. The limits of detection and quantitation were 0.3 and 1 μg ml-1, respectively. No interference was observed from the additives that are present in the pharmaceutical formulation or from hydrochlorothiazide and amlodipine that are co-formulated with OLM in some formulations. The assay was successfully applied to the analysis of OLM in tablets with good accuracy and precision. The assay described herein has great practical value in the routine analysis of OLM in quality control laboratories, as it has high throughput property, consumes minimum volume of organic solvent thus it offers the reduction in the exposures of the analysts to the toxic effects of organic solvents, and reduction in the analysis cost by 50-fold. Although the proposed assay was validated for OLM, however, the same methodology could be used for any electron-donating analyte for which a CT reaction can be performed.
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Affiliation(s)
- Ibrahim A Darwish
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P,O, Box 2457, Riyadh 11451, Saudi Arabia.
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Moussa B, Mohamed M, Youssef N. Simultaneous densitometric TLC analysis of olmesartan medoxomil and hydrochlorothiazide in the tablet dosage form. JPC-J PLANAR CHROMAT 2011. [DOI: 10.1556/jpc.24.2011.1.6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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RP-HPLC-DAD method for determination of olmesartan medoxomil in bulk and tablets exposed to forced conditions. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2010; 60:13-24. [PMID: 20228038 DOI: 10.2478/v10007-010-0010-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A simple, sensitive and precise RP-HPLC-DAD method was developed and validated for the determination of olmesartan medoxomil (AT-II receptor blocker) in the presence of its degradation products. Olmesartan medoxomil and all the degradation products were resolved on a C(18) column with the mobile phase composed of methanol, acetonitrile and water (60:15:25, V/V/V, pH 3.5 by orthophosphoric acid) at 260 nm using a photodiode array detector. The method was linear over the concentration range of 1-18 microg mL(-1) and precise with RSD < 1 % in intra- and inter-day study. Excellent recoveries of 99.3 +/- 0.9 to 100.8 +/- 1.2% proved the accuracy of the method. Developed method was specific, as indicated by chromatographic resolution > 2.0 for each peak and sensitive with LOD 0.03 microg mL(-1) and LOQ 0.1 microg mL(-1). The method was used to study the drug degradation behavior under forced conditions. Four degradation products (DP-I, II, III, IV) were formed during the degradation study in 0.1 mol L(-1) HCl whereas only DP-I, II and III were formed in water, 0.01 mol L(-1) NaOH and 3% H(2)O(2). No significant thermal or photolytic degradation was observed in solid drug. The method was applied successfully for the assay of olmesartan medoxomil in the tablet dosage form.
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Tambe SR, Shinde RH, Gupta LR, Pareek V, Bhalerao SB. DEVELOPMENT OF LLE AND SPE PROCEDURES AND ITS APPLICATIONS FOR DETERMINATION OF OLMESARTAN IN HUMAN PLASMA USING RP-HPLC AND HPTLC. J LIQ CHROMATOGR R T 2010. [DOI: 10.1080/10826070903571358] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Santosh R. Tambe
- a Department of Pharmaceutical Chemistry , M. G. V.'s Pharmacy College , Maharashtra, India
| | - Rupali H. Shinde
- a Department of Pharmaceutical Chemistry , M. G. V.'s Pharmacy College , Maharashtra, India
| | - Lalit R. Gupta
- a Department of Pharmaceutical Chemistry , M. G. V.'s Pharmacy College , Maharashtra, India
| | - Vikas Pareek
- a Department of Pharmaceutical Chemistry , M. G. V.'s Pharmacy College , Maharashtra, India
| | - Santosh B. Bhalerao
- a Department of Pharmaceutical Chemistry , M. G. V.'s Pharmacy College , Maharashtra, India
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Affiliation(s)
- R K Gilpin
- Brehm Research Laboratory University Park, Wright State University, Fairborn, Ohio 45324-2031, USA
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Bari PD, Rote AR. RP-LC and HPTLC Methods for the Determination of Olmesartan Medoxomil and Hydrochlorothiazide in Combined Tablet Dosage Forms. Chromatographia 2009; 69:1469-1472. [PMID: 19568313 PMCID: PMC2701495 DOI: 10.1365/s10337-009-1094-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2008] [Revised: 02/19/2009] [Accepted: 02/24/2009] [Indexed: 11/05/2022]
Abstract
Two new, rapid, precise, accurate and specific chromatographic methods were described for the simultaneous determination of olmesartan medoxomil and hydrochlorothiazide in combined tablet dosage forms. The first method was based on reversed phase liquid chromatography using an Eurosphere 100 RP C18 column (250 x 4.6 mm ID, 5 mum). The mobile phase was methanol-0.05% o-phosphoric acid (60:40 v/v) at a flow rate of 1.0 mL min(-1). Commercially available tablets and laboratory mixtures containing both drugs were assayed and detected using a UV detector at 270 nm. The second method involved silica gel 60 F(254) high performance thin layer chromatography and densitometric detection at 254 nm using acetonitrile-ethyl acetate-glacial acid (7:3:0.4 v/v/v) as the mobile phase. Calibration curves ranged between 200-600 and 125-375 ng spot(-1) for olmesartan and hydrochlorothiazide, respectively.
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Affiliation(s)
- P. D. Bari
- Department of Pharmaceutical Chemistry, MGV’s Pharmacy College Panchavati, New Mumbai Agra Road, Nashik, Maharashtra 422003 India
| | - A. R. Rote
- Department of Pharmaceutical Chemistry, MGV’s Pharmacy College Panchavati, New Mumbai Agra Road, Nashik, Maharashtra 422003 India
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Bajerski L, Rossi RC, Dias CL, Bergold AM, Fröehlich PE. Stability-Indicating LC Determination of a New Antihypertensive, Olmesartan Medoxomil in Tablets. Chromatographia 2008. [DOI: 10.1365/s10337-008-0811-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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