1.
Acta Crystallogr Sect E Struct Rep Online
; 68(Pt 9): o2612-3, 2012 Sep 01.
Article
in English
| MEDLINE
| ID: mdl-22969516
ABSTRACT
The title compound, C(19)H(24)O(6), is a sesquiterpene lactone isolated from the Kenyan plant Warburgia ugandensis. Ring A adopts a chair conformation, ring B is in a C(2) twist conformation and the lactone ring is nearly planar with maximum deviation 0.007â (1)â Å. The reported absolute configuration is based on that of the similar compound bromo-parasiticolide A and is supported by analysis of Bijvoet differences from light atoms in Mo Kα radiation.
2.
Acta Crystallogr C
; 62(Pt 4): o219-21, 2006 Apr.
Article
in English
| MEDLINE
| ID: mdl-16598148