PUB - Publikationen an der Universität Bielefeld

The title compound, C24H31NO3 {systematic name: (E)-3-[(1R*,2S*,4aS*,8aR*)-2-(benzo[d][1,3]dioxol-5-yl)-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl]-N-isobutylacrylamide}, is a natural product isolated from the stem bark of B. obscura. It is composed of an octahydronaphthalene ring system substituted with an essentially planar benzodioxole ring system [r.m.s. deviation = 0.012 angstrom] and an extended isobutylacrylamide group. In the crystal, molecules are linked by N-H center dot center dot center dot O hydrogen bonds, forming chains propagating along [100]. The chains are linked by pairs of C-H center dot center dot center dot O hydrogen bonds, involving inversion-related benzodioxole ring systems, forming ribbons lying parallel to (010). There are also CH center dot center dot center dot pi interactions present within the ribbons.