Phyllanthostatin 1 → NSC345395

Participants

Reaction Steps

The complete structures of phyllanthostatin 1 and phyllanthoside were deduced by interpreting the 13C NMR (22.63 MHz, CDCl3), 1H NMR (400 MHz, CDCl3) and EI high resolution and FD mass spectra. Although the structure of phyllanthoside was not previously known, Kupchan and co-workers reported [Kupchan, S. M., supra] structural studies of two degradation products which proved very useful in the present study. Methanolysis of phyllanthoside gave an aglycone methyl ester, phyllanthocin (determined by X-ray crystallographic analysis) and a disaccharide, C12H22O9. Acid hydrolysis of the disaccharide yielded 6-deoxy-D-glucose and spectral evidence suggested that the disaccharide portion contained two acetate groups.

Provenance & Evidence