title: Batatins III-VI, glycolipid ester-type dimers from Ipomoea batatas.
abstract: Batatins III-VI (1-4), glycolipid ester-type dimers, were isolated from the tuberous roots of sweet potato (Ipomoea batatas) using recycle high performance liquid chromatography. Their structures were characterized by means of several high-resolution NMR and mass spectrometry techniques. These compounds are the first examples of ester-type dimers which consist of two units of the heterotetrasaccharide operculinic acid C. Each unit was esterified by a different amount and type of acid residues: (2S)-methylbutanoic, cinnamic, decanoic (capric) and dodecanoic (lauric) acids. Batatins III-VI (1-4) are an example of the presence of a large number of resin glycoside congeners in each morning glory species caused by partial acylation of their constitutive saccharide cores.
authors: Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico, DF, Mexico.
authors: Daniel
authors: D
authors: Rosas-Ramírez
authors: Edgar
authors: E
authors: Escalante-Sánchez
authors: Rogelio
authors: R
authors: Pereda-Miranda
mesh_terms: D000215:Acylation; D002851:Chromatography, High Pressure Liquid; D006017:Glycolipids / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D027723:Ipomoea batatas / Q000737:chemistry*; D015394:Molecular Structure; D009844:Oligosaccharides / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry; D012116:Resins, Plant / Q000737:chemistry
chemical_list: D006017:Glycolipids; D006027:Glycosides; D009844:Oligosaccharides; D012116:Resins, Plant; C521644:batatin I; C559964:batatin III; C482480:operculinic acid