Stereocontrolled synthesis and determination of the c-24 and 25 stereochemistry of glaucasterol |
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| Authors: | Yoshinori Fujimoto Miki Kimura Takeshi Terasawa Fathy A.M. Khalifa Nobuo Ikekawa |
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| Affiliation: | Department of Chemistry, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo 152, Japan |
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| Abstract: | (24S,25S)- and (24R,25R)-24,26-Cyclocholesta-5,22E-dien-3β-ols (1a and 1b) were synthesized stereoselectively. Their 1H NMR comparison with natural glaucasterol (1) allowed to conclude that 1 possesses 24S,25S stereochemistry. |
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