作者:S. Hernández-Ortega、F. Yuste、B. Ortiz、H. Barrios、R. Sánchez-Obregón、F. Walls
DOI:10.1107/s0108270195015988
日期:1996.6.15
The molecular structure of beta-isopipitzol has been established as (1R,3R,6R,11R)-8-hydroxy-1,2,2,6-tetramethyl-tricyclo[5.2.2.0 (3,11)]undec-7-ene-9,10-dione, C15H20O3. The absolute configurations of the asymmetric centers at C3 (R) and C11 (R) were determined, based on the known configuration of the methyl group at C6, by means of X-ray crystallographic analysis and they confirm the structure previously assigned from chemical and spectroscopic evidence.