The unambiguous detection of kaurenic derivatives in aqueous infusions of Montanoa tomentosa by GC-MS and 2D-NMR spectroscopy: an answer to contradictory reports.
The qualitative analytical detection of kaurenic compounds kauradienoic (kauradien-9(11),16-dienoic acid) (1), monoginoic (2), and kaurenoic acids (3) in the infusion of Montanoa tomentosa Cerv., was carried out using GC-MS and 2D-NMR methods to resolve contradictory HPLC results from previous reports.
Enríquez
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RG
Instituto de Química, UNAM, Cd. Universitaria, México, DF 04510.
Miranda
E
E
Ortiz
B
B
León
I
I
Magos
G
G
Peña
A
A
Reynolds
W F
WF
Gnecco
D
D