New flavonoid glycosides from Aconitum naviculare (Brühl) Stapf, a medicinal herb from the trans-Himalayan region of Nepal.
Three new flavonoid glycosides, 3-O-[beta-D-glucopyranosyl-(1-->3)-(4-O-trans-p-coumaroyl)-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-glucopyranosyl]-7-O-[beta-D-glucopyranosyl-(1-->3)-alpha-L-rhamnopyranosyl]kaempferol, 3-O-[beta-D-glucopyranosyl-(1-->3)-(4-O-trans-p-coumaroyl)-alpha-L-rhamnopyranosyl-(1-->6)-beta-D-glucopyranosyl]-7-O-[beta-D-glucopyranosyl-(1-->3)-alpha-L-rhamnopyranosyl]quercetin and 7-O-[beta-D-glucopyranosyl-(1-->3)-alpha-L-rhamnopyranosyl]quercetin were isolated from the aqueous extract of the aerial parts of Aconitum naviculare. Their structures were elucidated by spectral analysis (HRAPI-TOF MS, 1H, 13C NMR, HMQC, HMBC, DFQ-COSY, ROESY and TOCSY).
Shrestha
Bharat Babu
BB
Central Department of Botany, Tribhuvan University, Kirtipur, Kathmandu, Nepal.
Dall'Acqua
Stefano
S
Gewali
Mohan Bikram
MB
Jha
Pramod Kumar
PK
Innocenti
Gabbriella
G
D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009390:Nepal; D010946:Plants, Medicinal / Q000737:chemistry*
D005419:Flavonoids; D006027:Glycosides