TY - JOUR
T1 - 1H and 13C NMR characteristics of synthetic derivatives of steroid sapogenins. Part III. 16β,23:23,26-Diepoxy side chains
AU - Vázquez-Ramírez, Ignacio
AU - Macías-Alonso, Mariana
AU - Arcos-Ramos, Rafael O.
AU - Ruíz-Pérez, Karen M.
AU - Solano-Ramírez, Diana O.
AU - Iglesias Arteaga, Martín A.
N1 - Funding Information:
We thank Dirección General de Asuntos del Personal Académico (DGAPA-UNAM) for financial support via project IN200105. We are indebted to Rosa I. del Villar Morales and Victor M. Arroyo Sánchez (USAI-UNAM) for registering NMR spectra. One of the authors, M.M.A., thanks CONACyT for a scholarship. Thanks are due to Professors José M. Mendez-Stivalet and John Boulton for correction of the manuscript.
PY - 2008/7
Y1 - 2008/7
N2 - 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.
AB - 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.
KW - 16β,23:23,26-Diepoxy-coprostanes
KW - 23-Oxosapogenins
KW - COSY
KW - HetCor
KW - NMR, H, C
KW - NOESY
UR - http://www.scopus.com/inward/record.url?scp=41549136384&partnerID=8YFLogxK
U2 - 10.1016/j.steroids.2008.01.027
DO - 10.1016/j.steroids.2008.01.027
M3 - Artículo
C2 - 18353410
SN - 0039-128X
VL - 73
SP - 642
EP - 651
JO - Steroids
JF - Steroids
IS - 6
ER -