Structure elucidation and NMR spectral assignments of one new dammarane-type triterpenoid saponin from black ginseng.
J Asian Nat Prod Res
; : 1-8, 2023 Sep 08.
Article
in En
| MEDLINE
| ID: mdl-37681976
ABSTRACT
New dammarane-type triterpenoid saponin, named 22(R)-notoginsenoside Ab1 (1), together with thirteen known dammarane-type triterpenoid saponins (2-14) was isolated from the EtOH extract of black ginseng and their structures were elucidated on the basis of one- and two-dimensional NMR (including 1H-NMR, 13C-NMR, HSQC, HMBC, ROESY) and calculated ECD. Among them, compounds 1-2 and 6-8 were isolated for the first time from ginseng and black ginseng. Besides, the absolute structure of 22(R)- and 22(S)- notoginsenoside Ab1 were distinguished by ECD for the first time.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Asian Nat Prod Res
Journal subject:
BOTANICA
/
QUIMICA
Year:
2023
Document type:
Article
Affiliation country:
China