Extended spectroscopic analysis has led to the derivation of complete structures for the 3 isomeric host-specific toxins C39H64O22 previously isolated from H. sacchari; these compounds represent bis-5-O-(β-galactofuranosyl)-β-galactofuranosides differing in the position of 1 double bond in their sesquiterpenoid aglycone component.
spectroscopic analysis, double bond, complete structure sesquiterpenoid
Publication DOI: 10.1007/BF01963114Journal NLM ID: 0376547Publisher: Basel, Switzerland: Birkhäuser Verlag
Institutions: Boyce Thompson Institute for Plant Research at Cornell University, Ithaca, USA, Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule Zürich, Zürich, Switzerland
Methods: 13C NMR, 1H NMR, FAB-MS, extraction, CI/D-MS