New oleanene triterpenoid saponins from Madhuca longifolia.
Four new oleanane-type triterpene glycosides, madlongisides A-D (1-4), were isolated from the seeds of Madhuca longifolia, and their structures were elucidated on the basis of extensive NMR experiments and chemical methods. Also obtained in this investigation were the known compounds mimusopside A, Mi-saponins A, B, and C, and 3-O-beta-D-glucopyranosyl protobassic acid.
Yoshikawa
K
K
Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-Cho, Tokushima 770-8514, Japan. yosikawa@ph.bunri-u.ac.jp
Tanaka
M
M
Arihara
S
S
Pal
B C
BC
Roy
S K
SK
Matsumura
E
E
Katayama
S
S
D019684:Magnoliopsida / Q000737:chemistry*; D015394:Molecular Structure; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013057:Spectrum Analysis; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D012503:Saponins; D014315:Triterpenes