Two new aloceramides

Two new aloceramides alomacrorrhiza A and alomacrorrhiza B were isolated from the ethanolic extract of the plant Alocasia macrorrhiza (L.) Schott. Their chemical structures were elucidated as (2S,3S,4R)-2N-[(2'R)-2'-hydroxy-hexacosanoyl]-tetradecane-1,3,4-triol (1) and (2S,3S,4R)-2N-[(2'R)-2'-hydroxy-hexacosanoyl]-hexadecane-1,3,4-triol (2) based on extensive 1D, 2D NMR, EI-MS, FAB-MS, HR-FAB-MS spectroscopic data and chemical degradation studies.

4p uocvong04 24-09-2015 30 3   Download