Producción Científica Profesorado

Diastereomeric C-glycosyloxanthrones from picramnia antidesma



Rojas Lima, Susana

1999

María del Rosario Hernández-Medel, Claudia O. Ramírez-Corzas, M. Nalleli Rivera-Domínguez, Julieta Ramírez-Mendez, Rosa L. Santillan Baca and Susana Rojas-Lima, Diastereomeric C-glycosyloxanthrones from Picramia antidesma, Phytochemistry, 50, 1379-1383 (1999). DOI: http://dx.doi.org/10.1016/S0031-9422(98)00354-9


Abstract


Nine compounds were isolated and identified from the stem of Picramnia antidesma. Two of the isolated compounds: mayoside and saroside, which is new, are diastereoisomeric oxanthrones. The structure of saroside has been obtained on the basis of spectroscopic evidence. The absolute configuration of this diastereoisomeric pair has been determined by CD spectra, and that of saroside was further established by X-ray crystallographic analysis.



Producto de Investigación




Artículos relacionados

3-Benzoyl-2-isopropyl-4-alkyloxazolidin-5-ones as Efficient and Inexpensive Sources of Enantiopure ?...

Comparative Structural Characterization of the Biquaternized N-CH3 and N-BH3 Derivatives of the cis-...

Synthesis and Structures of some Lithium and Sodium (Aminoalcoholato)hydrido Aluminates

An efficient potassium cyanide-promoted synthesis of 2-arylbenzoxazoles from [4.3.0]boron heterobicy...

An efficient potassium cyanide-promoted synthesis of 2-arylbenzoxazoles from [4.3.0]boron heterobicy...

Preparation of N-aryl-substituted spiro-?-lactams via Staudinger cycloaddition

Enantioselective synthesis of ?-amino acids. Part 11: Diastereoselective alkylation of chiral deriva...

X-ray crystallographic study of neutral boron chelates with ?-diketones and tropolone

Synthesis of nitrogen-, oxygen- and sulphur-containing tripodal ligands with a trimethylbenzene core...

Phenylmethyl 2,3,4-tri-O-acetyl--D-fucopyranoside