Source:http://linkedlifedata.com/resource/pubmed/id/17283655
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
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pubmed:dateCreated |
2007-2-7
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pubmed:abstractText |
Three unknown impurities in racecadotril bulk drug at levels below 0.5% were detected by simple reverse phase isocratic high performance liquid chromatography (HPLC). Structures for these impurities were proposed by molecular ion information and their fragmentation pattern obtained by LC-MS and these impurities were confirmed by NMR spectroscopy. The impurities I, II and III were characterized as benzyl 2-methyl carboximido acetate, benzyl 2-phenyl ethyl carboximido acetate, and benzyl 2-(1-benzyl vinyl carboximido) acetate. These structures were further confirmed by co-injecting of synthetic standards of impurities with racecadotril. The mechanism of the formation of these process related impurities is discussed.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0031-7144
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
61
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
994-8
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pubmed:meshHeading |
pubmed-meshheading:17283655-Chromatography, High Pressure Liquid,
pubmed-meshheading:17283655-Drug Contamination,
pubmed-meshheading:17283655-Magnetic Resonance Spectroscopy,
pubmed-meshheading:17283655-Mass Spectrometry,
pubmed-meshheading:17283655-Spectrometry, Mass, Electrospray Ionization,
pubmed-meshheading:17283655-Spectrophotometry, Ultraviolet,
pubmed-meshheading:17283655-Spectroscopy, Fourier Transform Infrared,
pubmed-meshheading:17283655-Thiorphan
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pubmed:year |
2006
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pubmed:articleTitle |
Structural studies of racecadotril and its process impurities by NMR and mass spectroscopy.
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pubmed:affiliation |
Department of Analytical Research, Discovery Research, Dr. Reddy's Laboratories Ltd., Miyapur, Hyderabad, India.
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pubmed:publicationType |
Journal Article
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