The title compound, hetisan-6,11 beta ,15 beta -triol, C20H27NO3, is a heti
sane-type diterpenoid alkaloid. It consists of six six-membered rings and t
wo five-membered rings. The fused-ring system contains three chair, two boa
t, one distorted boat and two envelope conformations. Intramolecular and in
termolecular hydrogen bonds are present between the O atoms, with O . . .O
separations of 3.006 (3) and 2.743 (3) Angstrom, as well as an O . . .N int
ermolecular interaction of 2.887 (3) Angstrom.