New pseudoguaianolides from Gaillardia megapotamica var. scabiosoides.
The aerial parts of Gaillardia megapotamica var. scabiosoides afforded known pseudoguaianolides and three new ones. Furthermore, a new guaianolide and an acetylenic sulfoxide were isolated.
Jakupovic
J
J
Institute for Organic Chemistry, Technical University of Berlin, Straße des 17. Juni 135, D-1000 Berlin 12.
Pathak
V P
VP
Bohlmann
F
F
King
R M
RM
Robinson
H
H