Monitoring the on-line titration of enantiomeric omeprazole employing continuous-flow capillary microcoil 1H NMR spectroscopy
Autor: | Petra, Hentschel, Karsten, Holtin, Lisa, Steinhauser, Klaus, Albert |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Chirality. 24(12) |
ISSN: | 1520-636X |
Popis: | The titration of the (S)-enantiomer of omeprazole with the (R)-enantiomer in chloroform-d(1) is monitored by continuous-flow capillary microcoil (1)H NMR spectroscopy employing a microcoil with a detection volume of 1.5 µl. The observed changes of the (1)H NMR chemical shifts indicate the formation of a heterochiral (R,S) dimer of omeprazole via its sulfinyl group and the NH group of the benzimidazole ring. |
Databáze: | OpenAIRE |
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