V. Manriquez et al., 1-ALPHA,5-ALPHA-DIHYDROXYMANOYL OXIDE, A NOVEL DITERPENE FROM SATUREJA-GILLIESII, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 624-626
The structure of the title diterpene, C20H34O3 (8 alpha,13R-epoxylabd-
14-ene-1 alpha,5 alpha-diol), exhibits a very uncommon oxidation patte
rn, with two axially disposed hydroxyl substituents at C1 and C5, and
five tertiary methyl groups.