Tobacco chemistry. 73. 4,6,8-trihydroxy-11-capnosene-2,10-dione, a new cembrane-derived bicyclic diterpenoid from tobacco.
A new diterpenoid containing a rare carbobicyclic cembrane-derived skeleton, the capnosane skeleton, has been isolated from flowers of Greek tobacco. It has been identified as (1S*,3R*,4S*,6R*,7R*,8R*,11Z)-4,6,8-trihydroxy-11-capnosene- 2,10-dione by spectral methods and X-ray analysis of the corresponding benzoate. A full account of the X-ray work is given.
Eklund
A M
AM
Reserca AB, Stockholm, Sweden.
Berg
J E
JE
Wahlberg
I
I
D004224:Diterpenes / Q000302:isolation & purification*; D008958:Models, Molecular; D015394:Molecular Structure; D010947:Plants, Toxic; D014026:Nicotiana / Q000737:chemistry*; D014961:X-Ray Diffraction
D004224:Diterpenes; C076565:4,6,8-trihydroxy-11-capnosene-2,10-dione