Incubation of 17-norkauran-16-one (3b) and ent-17-norkauran-16-one (2b) with Aspergillusniger gives the related C-3 equatorial alcohols 3c and 2c, respectively, whereas 17-norphyllocladan-16-one (4b) gives the 3β-alcohol 4c and the corresponding 3-ketone 4g. Yields of all of these products are low. Diketone 4g is identical with the corresponding compound derived from calliterpenone, thus confirming that calliterpenone should be formulated as 8 rather than 7.