Redetermnation of lagochiline monohydrate

Abstract

In the title compound, C20H36O5·H2O, previously studied by film methods [Vorontsova et al. (1975). Izvest. USSR Ser. Chem. 2, 338–343], the H atoms have been located and the absolute structure (seven stereogenic centres) established. An intramolecular O—H...O hydrogen bond generates an S(6) ring. In the crystal, molecules are linked by O—H...O hydrogen bonds, forming a three-dimensional network.