1H and 13C NMR characteristics of synthetic derivatives of steroid sapogenins

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 influe...

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Bibliographic Details
Published in:Steroids 2008-07, Vol.73 (6), p.642-651
Main Authors: Vázquez-Ramírez, Ignacio, Macías-Alonso, Mariana, Arcos-Ramos, Rafael O., Ruíz-Pérez, Karen M., Solano-Ramírez, Diana O., Iglesias Arteaga, Martín A.
Format: Article
Language:English
Subjects:
16β,23:23,26-Diepoxy-coprostanes
23-Oxosapogenins
COSY
HetCor
NMR, 1H, 13C
NOESY
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Summary: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.
ISSN:0039-128X
1878-5867
DOI:10.1016/j.steroids.2008.01.027