Synthesis, Characterization and Quantification of Simvastatin Metabolites and Impurities
AbstractSimvastatin is used in treatment of hypercholesterolemia because it regulates cholesterol synthesis as a result of its β-hydroxy acid acting as an inhibitor of 3-hydroxy-methylglutaryl coenzyme A (HMG-CoA). The present communication deals with synthesis, characterization and development of accurate, precise and sensitive Reverse Phase High Performance Liquid Chromatography (RP-HPLC) method for simultaneous estimation of simvastatin and its synthetic impurities. The impurities methyl ether and β-hydroxy acid of simvastatin were synthesized in the laboratory and characterized by MS, NMR and FT-IR spectroscopy. The separation of simvastatin and its impurities was carried out on an isocratic JASCO RP-HPLC system using KYA TECH HIQ SIL C18 column (150 x 4.6 mm internal diameter, particle size 5 μm) operating at ambient temperature using acetonitrile:water (80:20 v/v) with 0.1% orthophosphoric acid as mobile phase. The method developed for HPLC analysis of three impurities along with simvastatin was validated using ICH Q2B (R1) guidelines and it complied with these guidelines. The results of analysis were found to be in the range of 98.14% to 101.89% for all analytes with acceptable accuracy and precision. The method can be used for detection and quantification of synthetic impurities in bulk or formulations of simvastatin.
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BHATIA, M.S.; JADHAV, S.D.; BHATIA, N.M.; CHOUDHARI, P.B.; INGALE, K.B. Synthesis, Characterization and Quantification of Simvastatin Metabolites and Impurities. Sci. Pharm. 2011, 79, 601-614.
BHATIA MS, JADHAV SD, BHATIA NM, CHOUDHARI PB, INGALE KB. Synthesis, Characterization and Quantification of Simvastatin Metabolites and Impurities. Scientia Pharmaceutica. 2011; 79(3):601-614.Chicago/Turabian Style
BHATIA, Manish S.; JADHAV, Swapnil D.; BHATIA, Neela M.; CHOUDHARI, Prafulla B.; INGALE, Kundan B. 2011. "Synthesis, Characterization and Quantification of Simvastatin Metabolites and Impurities." Sci. Pharm. 79, no. 3: 601-614.