Dependence of the 1H NMR chemical shifts of ring F resonances on the orientation of the 27-methyl group of spirostane-type steroidal sapogenins.
A relationship between the 1H NMR chemical shifts of the ring F resonances and orientation of the H3-27 group has been derived for the establishment of 25R- and 25S-stereochemistry in spirostane type of steroidal sapogenins.
Agrawal
P K
PK
Central Institute of Medicinal and Aromatic Plants, Lucknow, India.
Bunsawansong
P
P
Morris
G A
GA
D004365:Drugs, Chinese Herbal; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010840:Phytosterols / Q000737:chemistry; D012502:Sapogenins / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry*; D013150:Spirostans / Q000737:chemistry*; D013237:Stereoisomerism
D004365:Drugs, Chinese Herbal; D010840:Phytosterols; D012502:Sapogenins; D012503:Saponins; D013150:Spirostans; C046297:sarsasapogenin