1-Isopropyl-6, 6, 8a-trimethyl-1, 3a, 5, 6, 7, 8a-hexahydro-3H-1-benzofuro [2, 3-b] pyrrole-2, 4-dione

摘要

The crystal structure of the title benzofuran derivative, C16H23NO3, has been elucidated. The tricyclic core, i.e. the tetrahydrobenzo-dihydrofuro-pyrrolidine ring system, is non-planar owing to the folding of the five-membered rings at their cis junction. The cyclohexene ring assumes a half-chair conformation, while the dihydrofuran and pyrrolidine rings each adopt an envelope conformation. Intramolecular C-H...O hydrogen bonds form S(6) closed patterns.