Journal
EXPERT OPINION ON DRUG DISCOVERY
Volume 11, Issue 7, Pages 695-706Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17460441.2016.1189899
Keywords
H-1 NMR; absolute quantification; drug discovery; drug development
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Introduction: The identification of a drug candidate and its structural determination is the most important step in the process of the drug discovery and for this, nuclear magnetic resonance (NMR) is one of the most selective analytical techniques. Area covered: The present review illustrates the various perspectives of absolute quantitative H-1 NMR spectroscopy in drug discovery and development. It deals with the fundamentals of quantitative NMR (qNMR), the physiochemical properties affecting qNMR, and the latest referencing techniques used for quantification. The precise application of qNMR during various stages of drug discovery and development, namely natural product research, drug quantitation in dosage forms, drug metabolism studies, impurity profiling and solubility measurements is elaborated. To achieve this, the authors explore the literature of NMR in drug discovery and development between 1963 and 2015. It also takes into account several other reviews on the subject. Expert opinion: qNMR experiments are used for drug discovery and development processes as it is a non-destructive, versatile and robust technique with high intra and interpersonal variability. However, there are several limitations also. qNMR of complex biological samples is incorporated with peak overlap and a low limit of quantification and this can be overcome by using hyphenated chromatographic techniques in addition to NMR.
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