Isolation and Structure Elucidation of a Novel Glycoside Niazidin from the Pods of Moringa oleifera

Studies on the EtOH extract of fresh pods of Moringa oleifera have resulted in the isolation of a novel glycoside niazidin ( 1 ) possessing an O -nitrile thiocarbamate group, along with thiocarbamate, carbamate, and isothiocyanate glycosides. Their structures have been determined through spectral studies, including appropriate 2D NMR experiments and chemical reaction. Fatty acid esters, long-chain hydrocarbons, carbamic acid, isocyanates, isothiocyanates, phenolic esters, nitriles, nitrile ester ( 3 ), polysulfide sulfinate ( 4 ), and a benzyl thiocarbamate ( 5 ), along with elemental sulfur (S 8 ), have also been identified through GC−MS.