25S-Dihydrodracogenin: A new spirostan sapogenin from Semele androgyna
1973
González, Antonio G. | Freire, Raimundo | Salazar, José A. | Hernández, Rosendo | Suárez, Ernesto | Ministerio de Educación y Ciencia (España) | Fundación Juan March
3 pages, 1 scheme.-- Part XX in the series "New Sources of Steroid Sapogenins". For Part XIX see González, A. G., Freire, R., Francisco, C. G., Salazar, J. A. and Suárez, E. (1973) Tetrahedron 29, 1731.
Show more [+] Less [-]From stems and leaves of Semele androgyna L. the new steroid sapogenin 25S-dihydrodracogenin (Ia) has been isolated and its structure confirmed by conversion into the acetates of 25R-dihydrosansevierigenin (Id) and ruscogenin (If) and by partial hydrogenation of dracogenin.
Show more [+] Less [-]One of us (R.H.) thanks the Ministerio de Educación y Ciencia for a fellowship 'Formación de Personal Investigador'. This work was realized within the Programme 1971 conceded by the 'Juan March' Foundation.
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