13C NMR spectroscopy of some third-generation cephalosporins, their synthetic intermediaries and reaction byproducts.
| Autor: | López MA; Centro de Química Farmacéutica, Avenida 200 y 21, Siboney, Playa, CP 16042, Ciudad de La Habana, Cuba., Rodríguez Z, González M, Tolón B, Avila R, Rodríguez JC, Vélez-Castro H, Fini A |
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| Jazyk: | angličtina |
| Zdroj: | Magnetic resonance in chemistry : MRC [Magn Reson Chem] 2007 Mar; Vol. 45 (3), pp. 236-9. |
| DOI: | 10.1002/mrc.1952 |
| Abstrakt: | (13)C NMR spectroscopic data for 25 cephalosporin derivatives were assigned by combination of one- and two-dimensional experiments. The effect of the substitution at C-3, C-7 and C-4 acid group positions on the chemical shifts of the cephem nucleus is discussed. (Copyright (c) 2007 John Wiley & Sons, Ltd.) |
| Databáze: | MEDLINE |
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