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Abstract:

A pregnane triglycoside containing a new genin 3β,14β-dihydroxy-21-methoxy-5β-pregnan-20-one has been isolated from the dried roots of Mandevilla pentlandiana. Chemical and spectroscopic evidence for the glycoside are consistent with the structure 3β,14β-dihydroxy-21-methoxy-5β-pregnan-20-one-3-O- β-d-diginopyranosyl-(1→4)- O-β-d-cymaropyranosyl-(1→4)-O-β-d-cymaropyranoside. It is noteworthy that 3β,14β, 21-trihydroxy 5β-pregnan-20-one, biosynthetically related to the genin of this glycoside, has been proved to be a precursor of cardenolides, also produced by this plant. © 1993.

Registro:

Documento: Artículo
Título:A pregnane glycoside from the roots of Mandevilla pentlandiana
Autor:Cabrera, G.; Seldes, A.M.; Gros, E.G.
Filiación:Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina
Palabras clave:3β,14β-dihydroxy-21-methoxy-5β-pregnan-20-one; 3β,14β-dihydroxy-21-methoxy-5β-pregnan-20-one-3-O-β-d-diginopyranosyl- (1→4)-O-β- d-cymaropyranosyl-(1→4) -O-β-d-cymaropyranoside.; Apocynaceae; glycoside; Mandevilla pentlandiana; glycoside; pregnane derivative; article; carbohydrate analysis; chemical structure; chemistry; isolation and purification; molecular genetics; nuclear magnetic resonance spectroscopy; plant; Carbohydrate Sequence; Glycosides; Magnetic Resonance Spectroscopy; Molecular Sequence Data; Molecular Structure; Plants; Pregnanes; Support, Non-U.S. Gov't
Año:1992
Volumen:32
Número:1
Página de inicio:171
Página de fin:173
DOI: http://dx.doi.org/10.1016/0031-9422(92)80126-Y
Título revista:Phytochemistry
Título revista abreviado:Phytochemistry
ISSN:00319422
CODEN:PYTCA
CAS:Glycosides; Pregnanes
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319422_v32_n1_p171_Cabrera

Referencias:

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Citas:

---------- APA ----------
Cabrera, G., Seldes, A.M. & Gros, E.G. (1992) . A pregnane glycoside from the roots of Mandevilla pentlandiana. Phytochemistry, 32(1), 171-173.
http://dx.doi.org/10.1016/0031-9422(92)80126-Y
---------- CHICAGO ----------
Cabrera, G., Seldes, A.M., Gros, E.G. "A pregnane glycoside from the roots of Mandevilla pentlandiana" . Phytochemistry 32, no. 1 (1992) : 171-173.
http://dx.doi.org/10.1016/0031-9422(92)80126-Y
---------- MLA ----------
Cabrera, G., Seldes, A.M., Gros, E.G. "A pregnane glycoside from the roots of Mandevilla pentlandiana" . Phytochemistry, vol. 32, no. 1, 1992, pp. 171-173.
http://dx.doi.org/10.1016/0031-9422(92)80126-Y
---------- VANCOUVER ----------
Cabrera, G., Seldes, A.M., Gros, E.G. A pregnane glycoside from the roots of Mandevilla pentlandiana. Phytochemistry. 1992;32(1):171-173.
http://dx.doi.org/10.1016/0031-9422(92)80126-Y