1H and 13C NMR characteristics of synthetic derivatives of steroid sapogenins. Part III. 16Beta,23:23,26-diepoxy side chains.

Authors :: Vázquez-Ramírez I
Macías-Alonso M
Arcos-Ramos RO
Ruíz-Pérez KM
Solano-Ramírez DO
Iglesias Arteaga MA
Source :: Steroids [Steroids] 2008 Jul; Vol. 73 (6), pp. 642-51. Date of Electronic Publication: 2008 Feb 12.
Publication Year :: 2008
Abstract: The full assignments of the (1)H and (13)C NMR signals of steroids bearing the 16beta,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.

Subjects :: Carbon Isotopes
Models, Molecular
Protons
Magnetic Resonance Spectroscopy methods
Sapogenins chemistry

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