Abstract:
:Further studies by means of preparative HPLC led to the isolation of two new furostanol saponins, macrostemonoside J (1) and L (3), along with an artifact, macrostemonoside K (2) from the bulbs of Allium macrostemon. On the basis of chemical evidence and spectral analysis (1H-, 13C-NMR and FAB-MS), the structure of 1 was elucidated to be 26-O-beta-D-glucopyranosyl 2 beta,3 beta,22,26-tetrahydroxy-25(R)-5 beta-furostan 3-O-beta-D-glucopyranosyl (1-->2)-beta-D-galactopyranoside. 3 was deduced to be 26-O-beta-D-glucopyranosyl 2 beta,3 beta,26-trihydroxy-25(R)-5 beta-furostan- 20(22)-ene 3-O-beta-D-glucopyranosyl (1-->2)-beta-D-galactopyranoside.
journal_name
Chem Pharm Bull (Tokyo)journal_title
Chemical & pharmaceutical bulletinauthors
Peng J,Yao X,Okada Y,Okuyama Tdoi
10.1248/cpb.42.2180subject
Has Abstractpub_date
1994-10-01 00:00:00pages
2180-2issue
10eissn
0009-2363issn
1347-5223journal_volume
42pub_type
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