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Hossain MJ, Sultan MZ, Rashid MA, Kuddus MR. Does Rabeprazole Sodium Alleviate the Anti-diabetic Activity of Linagliptin? Drug-Drug Interaction Analysis by In vitro and In vivo Methods. Drug Res (Stuttg) 2020; 70:519-527. [PMID: 32916741 DOI: 10.1055/a-1233-3371] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Drug interaction has turned into the preeminent regarding issues for a prescriber during polypharmacy. The foremost objective of this research was to form a complex between linagliptin and rabeprazole sodium by in vitro interactions. The interactions between the drugs have been examined by monitoring some chromatographic and spectroscopic analyses viz. TLC, HPLC, FT-IR, UV, Job's plot, conductometric titrations, and Ardon's spectrophotometric strategy. Rabeprazole sodium formed a stable complex with linagliptin, which was ensured from the insight of these analytical data. The developed complex's bright spot was clearly watched in the TLC plate. The retention time (Rt) of the formed complex was 5.303 min, where the Rt were 3.364 and 3.103 min for linagliptin and rabeprazole sodium, respectively, in HPLC chromatograms. In FT-IR and UV spectra of the formed complex revealed some disappearance of characteristic peaks that affirmed the complexation. All of the variations of the spectrophotometric and chromatographic properties from the antecedent drugs indicated the drug-drug interaction. Another crucial fact for the experimental aim was to affirm the assumed drug interaction by in vivo model examination. The assessment of anti-diabetic property on alloxan-induced Swiss albino mice proved significant in vivo interaction between the drugs. It was outlined from the animal study that the hypoglycemic activity of linagliptin might be significantly affected due to the complex formation of the drug with a proton pump inhibitor (PPI). Nonetheless, it is the primary outcome of the interaction, which recommends the bigger in vivo study or clinical monitoring on the human model.
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Affiliation(s)
- Md Jamal Hossain
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | - Md Zakir Sultan
- Centre for Advanced Research in Sciences (CARS), University of Dhaka, Dhaka, Bangladesh
| | - Mohammad A Rashid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | - Md Ruhul Kuddus
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
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2
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Leyva E, Moctezuma E, Baines KM, Noriega S, Pérez Flores F, Lara‐Pérez C. Identification of intermediate compounds and photodegradation mechanisms of omeprazole under the system UV/O
2. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.4024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Elisa Leyva
- Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis Potosí San Luis Potosí Mexico
| | - Edgar Moctezuma
- Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis Potosí San Luis Potosí Mexico
| | - Kim M. Baines
- Department of ChemistryUniversity of Western Ontario London Ontario Canada
| | - Saúl Noriega
- Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis Potosí San Luis Potosí Mexico
| | - Francisco Pérez Flores
- Instituto de QuímicaUniversidad Nacional Autónoma de México, Cd. Universitaria, Circuito Exterior Mexico City Mexico
| | - Carmen Lara‐Pérez
- Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis Potosí San Luis Potosí Mexico
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3
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Zhang H, Huang D, Wang KH, Li J, Su Y, Hu Y. Synthesis of Benzimidazolones via One-Pot Reaction of Hydroxylamines, Aldehydes, and Trimethylsilyl Cyanide Promoted by Diacetoxyiodobenzene. J Org Chem 2017; 82:1600-1609. [DOI: 10.1021/acs.joc.6b02781] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Huaiyuan Zhang
- College
of Chemistry and Chemical Engineering, Northwest Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Danfeng Huang
- College
of Chemistry and Chemical Engineering, Northwest Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Ke-Hu Wang
- College
of Chemistry and Chemical Engineering, Northwest Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Jun Li
- College
of Chemistry and Chemical Engineering, Northwest Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Yingpeng Su
- College
of Chemistry and Chemical Engineering, Northwest Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Yulai Hu
- College
of Chemistry and Chemical Engineering, Northwest Normal University, 967 Anning East Road, Lanzhou 730070, P. R. China
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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4
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Hellwig FM, Reis RHD, Barbosa SDR, Malesuik MD. Stability-indicating liquid chromatographic and UV spectrophotometric methods for the quantification of ciprofibrate in capsules and tablets. BRAZ J PHARM SCI 2015. [DOI: 10.1590/s1984-82502015000100022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study describes the development and evaluation of stability-indicating liquid chromatographic (LC) and UV spectrophotometric methods for the quantification of ciprofibrate (CPF) in tablets and capsules. Isocratic LC separation was achieved on a RP18 column using a mobile phase of o-phosphoric acid (0.1% v/v), adjusted to pH 3.0 with triethylamine (10% v/v) and acetonitrile (35:65 v/v), with a flow rate of 1.0 mL min-1. Detection was achieved with a photodiode array detector at 233 nm. For the spectrophotometric analysis, ethanol and water were used as the solvent and a wavelength of 233 nm was selected for the detection. The methods were validated according to International Conference on Harmonization (ICH) guidelines for validating analytical procedures. Statistical analysis showed no significant difference between the results obtained by the two methods. The proposed methods were successfully applied to the CPF quality-control analysis of tablets and capsules.
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5
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El-Fatatry HM, Mabrouk MM, Hewala II, Emam EH. Stability-indicating HPLC-DAD methods for determination of two binary mixtures: Rabeprazole sodium-mosapride citrate and rabeprazole sodium-itopride hydrochloride. J Pharm Anal 2014; 4:258-269. [PMID: 29403889 PMCID: PMC5761220 DOI: 10.1016/j.jpha.2013.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 09/17/2013] [Indexed: 11/29/2022] Open
Abstract
Two selective stability-indicating HPLC methods are described for determination of rabeprazole sodium (RZ)–mosapride citrate (MR) and RZ–itopride hydrochloride (IO) mixtures in the presence of their ICH-stress formed degradation products. Separations were achieved on X-Bridge C18 column using two mobile phases: the first for RZ–MR mixture consisted of acetonitrile: 0.025 M KH2PO4 solution: TEA (30:69:1 v/v; pH 7.0); the second for RZ–IO mixture was at ratio of 25:74:1 (v/v; pH 9.25). The detection wavelength was 283 nm. The two methods were validated and validation acceptance criteria were met in all cases. Peak purity testing using contrast angle theory, relative absorbance and log A versus the wavelengths plots were presented. The % recoveries of the intact drugs were between 99.1% and 102.2% with RSD% values less than 1.6%. Application of the proposed HPLC methods indicated that the methods could be adopted to follow the stability of their formulations.
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Affiliation(s)
- Hamed M El-Fatatry
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, University of Tanta, Tanta, Egypt
| | - Mokhtar M Mabrouk
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, University of Tanta, Tanta, Egypt
| | - Ismail I Hewala
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, University of Alexandria, Egypt
| | - Ehab H Emam
- Quality Sector, Alexandria Company for Pharmaceuticals, Alexandria 21521, Egypt
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6
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A unique one-pot reaction via CC cleavage from aminomethylene benzimidazoles to access benzimidazolones with wide potentiality. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.113] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Kumar N, Sangeetha D. Development and Validation of a Stability-Indicating RP-HPLC Method for the Determination of Process-Related Impurities and Degradation Products of Rabeprazole Sodium in Pharmaceutical Formulation. Sci Pharm 2013; 81:697-711. [PMID: 24106668 PMCID: PMC3791934 DOI: 10.3797/scipharm.1301-25] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 03/17/2013] [Indexed: 11/30/2022] Open
Abstract
The objective of the current study was to develop and validate a reversed-phase high-performance liquid chromatographic method for the quantitative determination of process-related impurities and degradation products of rabeprazole sodium in pharmaceutical formulation. Chromatographic separation was achieved on the Waters Symmetry Shield RP18 (250 mm × 4.6 mm) 5 μm column with a mobile phase containing a gradient mixture of solvent A (mixture of 0.025 M KH2PO4 buffer and 0.1% triethylamine in water, pH 6.4 and acetonitrile in the ratio of 90:10 v/v, respectively) and solvent B (mixture of acetonitrile and water in the ratio of 90:10 v/v, respectively). The mobile phase was delivered at a flow rate of 1.0 mL/min and with UV detection at 280 nm. Rabeprazole sodium was subjected to the stress conditions of oxidative, acid, base, hydrolytic, thermal, and photolytic degradation. Rabeprazole sodium was found to degrade significantly under acid hydrolysis, base hydrolysis, oxidative, and thermal degradation conditions. The degradation products were well-resolved from the main peak and its impurities, thus proving the stability-indicating power of the method. The mass balance was found to be in the range of 97.3–101.3% in all of the stressed conditions, thus proving the stability-indicating power of the method. The developed method was validated as per ICH guidelines with respect to specificity, linearity, limit of detection, limit of quantification, accuracy, precision, and robustness.
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Affiliation(s)
- Navneet Kumar
- Analytical Research and Development, Integrated Product Development, Dr. Reddy's Laboratories Ltd., Bachupally, Hyderabad-500072, A.P, India. ; Department of chemistry, S.A.S., V.I.T. University, Vellore-632014, Tamilnadu, India
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8
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Nawaz MS. Validation and application of a new reversed phase HPLC method for in vitro dissolution studies of rabeprazole sodium in delayed-release tablets. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2013; 2013:976034. [PMID: 24062966 PMCID: PMC3766580 DOI: 10.1155/2013/976034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 07/18/2013] [Accepted: 07/19/2013] [Indexed: 06/02/2023]
Abstract
The purpose of this study was to develop and validate a new reversed phase high performance liquid chromatographic (RP-HPLC) method to quantify in vitro dissolution assay of rabeprazole sodium in pharmaceutical tablet dosage form. Method development was performed on C 18, 100 × 4.6 mm ID, and 10 μ m particle size column, and injection volume was 20 μ L using a diode array detector (DAD) to monitor the detection at 280 nm. The mobile phase consisted of buffer: acetonitrile at a ratio of 60 : 40 (v/v), and the flow rate was maintained at 1.0 mL/min. The method was validated in terms of suitability, linearity, specificity, accuracy, precision, stability, and sensitivity. Linearity was observed over the range of concentration 0.05-12.0 μ g/mL, and the correlation coefficient was found excellent >0.999. The method was specific with respect to rabeprazole sodium, and the peak purity was found 99.99%. The method was precise and had relative standard deviations (RSD) less than 2%. Accuracy was found in the range of 99.9 to 101.9%. The method was robust in different variable conditions and reproducible. This proposed fast, reliable, cost-effective method can be used as quality control tool for the estimation of rabeprazole sodium in routine dissolution test analysis.
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Affiliation(s)
- Md. Saddam Nawaz
- Quality Assurance Department, ACI Ltd., Narayanganj 1400, Bangladesh
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9
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Li W, Wang J, Hu YZ. Photodegradation of fleroxacin injection: II. Kinetics and toxicological evaluation. AAPS PharmSciTech 2013; 14:578-84. [PMID: 23463261 DOI: 10.1208/s12249-013-9942-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 02/22/2013] [Indexed: 11/30/2022] Open
Abstract
Photodegradation kinetics of fleroxacin were investigated in different injections. Five commercial formulations were analyzed before and after irradiation by determining residual volumes of fleroxacin with high-pressure liquid chromatography (HPLC), and different decomposition functions and models were obtained. Concentration levels of fleroxacin in injections caused the differences in photodegradation kinetics instead of ingredients. Influences of different pH values and presence of NaCl on photodegradation of fleroxacin were observed. Low pH value decreased the efficacy of photolysis and enhanced photostability of fleroxacin injections. Tentative structure of a new degradation product afforded was proposed. An acute toxicity assay using the bioluminescent bacterium Q67 was performed for fleroxacin injections after exposure to light. The research proved that fleroxacin was more photolabile in dilute injection, and acute toxicity of dilute injection increased more rapidly than that of concentrated injection during irradiation.
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Affiliation(s)
- Wei Li
- Department of Antibiotics, Anhui Institute for Food and Drug Control, Hefei 230051, China.
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10
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Seshadri RK, Raghavaraju TV, Kumar YR, Babu BS, Venkatasubbaiah B, Chakravarthy IE. DEVELOPMENT AND VALIDATION OF A STABILITY INDICATING UPLC METHOD, IDENTIFICATION, AND CHARACTERIZATION OF THREE DEGRADANT IMPURITIES IN PHARMACEUTICAL DOSAGE FORM OF RABEPRAZOLE SODIUM. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.720327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Raja Kumar Seshadri
- a Analytical Research and Development, Integrated Product Development , Dr. Reddy's Laboratories Ltd. , Hyderabad , India
- b Department of Chemistry , Rayalaseema University , Karnool , A.P. , India
| | - T. V. Raghavaraju
- a Analytical Research and Development, Integrated Product Development , Dr. Reddy's Laboratories Ltd. , Hyderabad , India
| | - Y. Ravindra Kumar
- a Analytical Research and Development, Integrated Product Development , Dr. Reddy's Laboratories Ltd. , Hyderabad , India
| | - B. Suresh Babu
- a Analytical Research and Development, Integrated Product Development , Dr. Reddy's Laboratories Ltd. , Hyderabad , India
| | - B. Venkatasubbaiah
- a Analytical Research and Development, Integrated Product Development , Dr. Reddy's Laboratories Ltd. , Hyderabad , India
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11
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Photochemistry of a novel antimuscarinic drug fesoterodine and identification of its photodegradation products by LC–ESI–MS studies. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2013.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Identification, characterization and cytotoxicity in vitro assay of nitazoxanide major degradation product. Talanta 2012; 93:206-11. [DOI: 10.1016/j.talanta.2012.02.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 02/04/2012] [Accepted: 02/07/2012] [Indexed: 11/19/2022]
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13
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Xing X, Zhu X, Li H, Jiang Y, Ni J. Electrochemical oxidation of nitrogen-heterocyclic compounds at boron-doped diamond electrode. CHEMOSPHERE 2012; 86:368-375. [PMID: 22071370 DOI: 10.1016/j.chemosphere.2011.10.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 10/14/2011] [Accepted: 10/14/2011] [Indexed: 05/31/2023]
Abstract
Nitrogen-heterocyclic compounds (NHCs) are toxic and bio-refractory contaminants widely spread in environment. This study investigated electrochemical degradation of NHCs at boron-doped diamond (BDD) anode with particular attention to the effect of different number and position of nitrogen atoms in molecular structure. Five classical NHCs with similar structures including indole (ID), quinoline (QL), isoquinoline (IQL), benzotriazole (BT) and benzimidazole (BM) were selected as the target compounds. Results of bulk electrolysis showed that degradation of all NHCs was fit to a pseudo first-order equation. The five compounds were degraded with the following sequence: ID>QL>IQL>BT>BM in terms of their rates of oxidation. Quantum chemical calculation was combined with experimental results to describe the degradation character of NHCs at BDD anode. A linear relationship between degradation rate and delocalization energy was observed, which demonstrated that electronic charge was redistributed through the conjugation system and accumulated at the active sites under the attack of hydroxyl radicals produced at BDD anode. Moreover, atom charge was calculated by semi empirical PM3 method and active sites of NHCs were identified respectively. Analysis of intermediates by GC-MS showed agreement with calculation results.
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Affiliation(s)
- Xuan Xing
- Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing100871, China
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14
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Nudelman NS, Alvaro CES. Inter- and intramolecular hydrogen bonds in polyamines: variable-concentration 1
H-NMR studies. J PHYS ORG CHEM 2011. [DOI: 10.1002/poc.1832] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Rao PS, Ray UK, Gupta PB, Rao DVNS, Islam A, Rajput P, Mukkanti K. Identification, isolation and characterization of new impurity in rabeprazole sodium. J Pharm Biomed Anal 2010; 52:620-4. [PMID: 20153594 DOI: 10.1016/j.jpba.2010.01.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2009] [Revised: 01/15/2010] [Accepted: 01/18/2010] [Indexed: 12/01/2022]
Abstract
Rabeprazole sodium [1] is a proton pump inhibitor, used as an antiulcerative. During the manufacturing of rabeprazole sodium, we observed an unknown impurity at levels 0.05-0.1% in HPLC analysis along with the known potential impurities. This new unknown impurity was isolated using preparative liquid chromatography. Based on the complete spectral analysis ((1)H NMR, (13)C NMR, DEPT, Mass and IR), this new impurity was designated as 2-[[(3-methyl-4-(methylthio)-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole (methylthio impurity of rabeprazole). Impurity isolation, structure elucidation and probable formation mechanism was discussed.
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Affiliation(s)
- P Sreenivasa Rao
- Department of Chemical Research, Aurobindo Pharma Ltd. Research Centre, 313, Bachupally, Quthubullapur Mandal, Hyderabad 500090, India
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16
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Song Z, Chen X, Zhang D, Ren L, Fang L, Cheng W, Gong P, Bi K. Kinetic Study of the Degradation of PAC-1 and Identification of a Degradation Product in Alkaline Condition. Chromatographia 2009. [DOI: 10.1365/s10337-009-1348-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Ramchandra Reddy P, Himabindu V, Jaydeepkumar L, Madhusudhan Reddy G, Vijaya Kumar J, Mahesh Reddy G. An Improved Process for the Production of Rabeprazole Sodium Substantially Free from the Impurities. Org Process Res Dev 2009. [DOI: 10.1021/op900148x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pingili Ramchandra Reddy
- Research and Development, Integrated Product Development, Innovation Plaza, Dr. Reddy’s Laboratories Ltd., Bachupally, Qutubullapur, R. R. Dist. 500 072, Andhra Pradesh, India, and Center for Environment, Institute of Science and Technology, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad 500 072, Andhra Pradesh, India
| | - Vurimidi Himabindu
- Research and Development, Integrated Product Development, Innovation Plaza, Dr. Reddy’s Laboratories Ltd., Bachupally, Qutubullapur, R. R. Dist. 500 072, Andhra Pradesh, India, and Center for Environment, Institute of Science and Technology, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad 500 072, Andhra Pradesh, India
| | - Lilakar Jaydeepkumar
- Research and Development, Integrated Product Development, Innovation Plaza, Dr. Reddy’s Laboratories Ltd., Bachupally, Qutubullapur, R. R. Dist. 500 072, Andhra Pradesh, India, and Center for Environment, Institute of Science and Technology, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad 500 072, Andhra Pradesh, India
| | - Ganta Madhusudhan Reddy
- Research and Development, Integrated Product Development, Innovation Plaza, Dr. Reddy’s Laboratories Ltd., Bachupally, Qutubullapur, R. R. Dist. 500 072, Andhra Pradesh, India, and Center for Environment, Institute of Science and Technology, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad 500 072, Andhra Pradesh, India
| | - Jonnalagadda Vijaya Kumar
- Research and Development, Integrated Product Development, Innovation Plaza, Dr. Reddy’s Laboratories Ltd., Bachupally, Qutubullapur, R. R. Dist. 500 072, Andhra Pradesh, India, and Center for Environment, Institute of Science and Technology, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad 500 072, Andhra Pradesh, India
| | - Ghanta Mahesh Reddy
- Research and Development, Integrated Product Development, Innovation Plaza, Dr. Reddy’s Laboratories Ltd., Bachupally, Qutubullapur, R. R. Dist. 500 072, Andhra Pradesh, India, and Center for Environment, Institute of Science and Technology, Jawaharlal Nehru Technological University, Kukatpally, Hyderabad 500 072, Andhra Pradesh, India
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Vasu Dev R, Sai Uday Kiran G, Venkata Subbaiah B, Suresh Babu B, Moses Babu J, Dubey PK, Vyas K. Identification of degradation products in stressed tablets of Rabeprazole sodium by HPLC-hyphenated techniques. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2009; 47:443-448. [PMID: 19173350 DOI: 10.1002/mrc.2404] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Three unknown impurities of Rabeprazole, a proton pump inhibitor, were formed in the formulated drug under the stress conditions, [40 degrees C/75% relative humidity (RH) for 6 months] with relative retention times (RRTs) 0.17, 0.22 and 0.28. The Impurity-I (0.17 RRT) was isolated using preparative HPLC and characterized by NMR and MS. The other two impurities, Impurity-II (RRT 0.22) and Impurity-III (RRT 0.28) could not be isolated, hence they are characterized by HPLC-hyphenated techniques, LC-NMR and high-resolution LC-MS. On the basis of the spectral data, the Impurity-I, Impurity-II and Impurity-III were characterized as 1-(1H-benzo[d]imidazol-2-yl)-3-methyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid, 1H-benzo [d] imidazole-2-sulfonic acid and 4-(3-methoxy propoxy)-3-methyl-2-pyridine carboxylic acid, respectively.
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Affiliation(s)
- R Vasu Dev
- Analytical Research, Discovery Research, Dr. Reddy's Laboratories Ltd., Miyapur, Hyderabad 500 049, India.
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19
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Reddy GM, Mukkanti K, Bhaskar BV, Reddy PP. Synthesis of Metabolites and Related Substances of Rabeprazole, an Anti-Ulcerative Drug. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910802372541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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