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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/mrc.4936
|2 doi
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|a pubmed24n1001.xml
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|a (DE-627)NLM300508484
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|a (NLM)31441102
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Franco, Pedro Henrique Cavalcanti
|e verfasserin
|4 aut
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| 245 |
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|a Purity determination of a new antifungal drug candidate using quantitative 1 H NMR spectroscopy
|b Method validation and comparison of calibration approaches
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|c 2020
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 17.03.2020
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|a Date Revised 17.03.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2019 John Wiley & Sons, Ltd.
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|a Quantitative nuclear magnetic resonance (qNMR) is an analytical technique that offers numerous advantages in pharmaceutical applications including minimum sample preparation and rapid data collection times with no need for response factor corrections, being a powerful tool for assaying drug content in both drug discovery and early drug development. In the present work, we have applied qNMR, using both the internal standard and the electronic reference to access in vivo concentrations 2 calibration methods, to assess the purity of RI76, a novel antifungal drug candidate. NMR acquisition and processing parameters were optimized in order to obtain spectra with intense, well-resolved signals of completely relaxed nuclei. The analytical method was validated following current guidelines, demonstrating selectivity, linearity, accuracy, precision, and robustness. The calibration approaches were statistically compared, and no significant difference was observed when comparing the obtained results and their dispersion in terms of relative standard deviation. The proposed qNMR method may, therefore, be used for both qualitative and quantitative assessments of RI76 in early drug development and for characterization of this compound
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|a Comparative Study
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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4 |
|a 1H
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|a 2-thiazolylhydrazone
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|a NMR
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|a analytical chemistry
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|a antifungal
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|a drug development
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| 650 |
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|a quantitative NMR
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| 650 |
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|a spectroscopy
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| 650 |
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|a Acetanilides
|2 NLM
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| 650 |
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7 |
|a Antifungal Agents
|2 NLM
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| 650 |
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7 |
|a Thiazoles
|2 NLM
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| 650 |
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7 |
|a acetanilide
|2 NLM
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| 650 |
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|a SP86R356CC
|2 NLM
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| 700 |
1 |
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|a Braga, Saulo Fehelberg Pinto
|e verfasserin
|4 aut
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| 700 |
1 |
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|a de Oliveira, Renata Barbosa
|e verfasserin
|4 aut
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| 700 |
1 |
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|a César, Isabela Costa
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 58(2020), 1 vom: 15. Jan., Seite 97-105
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnns
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| 773 |
1 |
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|g volume:58
|g year:2020
|g number:1
|g day:15
|g month:01
|g pages:97-105
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|u http://dx.doi.org/10.1002/mrc.4936
|3 Volltext
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