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Sesaminol glucosides in sesame seeds
H. KATSUZAKI rt al.
774
bCH3 CompoundI
( Pinoresinol )
Compound 2 ( Pl )
&H3 Compound 3 ( Sesamolinol
)
Compopund 4 ( Sesaminol
)
G4
Compound 6
Compound 5
0
Compound 7
by a HSQC spectrum. The sugar sequence and point of attachment to the aglycone were evident from the HMBC spectrum, in which long-range couplings between C-2,/H-Cl and C-G2/H-Gl’ were observed.
assigned
The chemical shift of C-G2 at 681.4 showed a downfield shift in comparison with C-G2’ at 674.9. From these results, the structure of 6 was determined to be sesaminol 2’-O-P-D-glucopyranosyl (l-+2)-o-/?-D-glucopyranoside.
774
bCH3 CompoundI
( Pinoresinol )
Compound 2 ( Pl )
&H3 Compound 3 ( Sesamolinol
)
Compopund 4 ( Sesaminol
)
G4
Compound 6
Compound 5
0
Compound 7
by a HSQC spectrum. The sugar sequence and point of attachment to the aglycone were evident from the HMBC spectrum, in which long-range couplings between C-2,/H-Cl and C-G2/H-Gl’ were observed.
assigned
The chemical shift of C-G2 at 681.4 showed a downfield shift in comparison with C-G2’ at 674.9. From these results, the structure of 6 was determined to be sesaminol 2’-O-P-D-glucopyranosyl (l-+2)-o-/?-D-glucopyranoside.