Constituents of Cannabis sativa, XXV. Isolation of Two New Dihydrostilbenes from a Panamanian Variant

Abstract
Two new dihydrostilbene compounds (named cannabistilbenes I and II) were isolated from a polar acidic fraction of a Panamanian variant of Cannabis sativa grown in Mississippi, USA. The structure of cannabistilbene I was 3,4''-dihydroxy-5-methoxy-3''-(3-methylbut-2-enyl)-dihydrostilbene from spectral data which was confirmed by synthesis. There is spectral evidence to indicate that cannabistilbene II could be represented by either of 2 structure.