1H and 13C NMR characteristics of synthetic derivatives of steroid sapogenins. Part III. 16Beta,23:23,26-diepoxy side chains |
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| Authors: | Vázquez-Ramírez Ignacio Macías-Alonso Mariana Arcos-Ramos Rafael O Ruíz-Pérez Karen M Solano-Ramírez Diana O Iglesias Arteaga Martín A |
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| Affiliation: | aDepartamento de Química Orgánica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, 04510 México, D.F., Mexico |
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| Abstract: | The full assignments of the 1H and 13C NMR signals of steroids bearing the 16β,23:23,26-diepoxy side chain are provided. Differentiation of the diasterotopic H-26 pair was achieved with the aid of NOESY experiments. The main substituent and steric effects associated with this moiety and their influence on the chemical shifts of the neighboring atoms are discussed. |
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| Keywords: | NMR, 1H, 13C COSY HetCor NOESY 23-Oxosapogenins 16β,23:23,26-Diepoxy-coprostanes |
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