Isoflavone tetraglycosides from Sophora japonica Leaves.
Two new isoflavone tetraglycosides ( 1 and 2) and six known compounds were isolated from the leaves of Sophora japonica. The new glycosides are genistein 7- O-beta- d-glucopyranoside-4'- O-(6'''- O-alpha- l-rhamnopyranosyl)-beta-sophoroside ( 1) and genistein 7- O-alpha- l-rhamnopyranoside-4'- O-(6'''- O-alpha- l-rhamnopyranosyl)-beta-sophoroside ( 2). The structures of compounds 1 and 2 were established primarily by NMR experiments and chemical methods, and they are the first reported naturally occurring isoflavone glycosides with four attached sugar residues.
Nanjing University of Chinese Medicine, Nanjing, People's Republic of China. yupingtang@njutcm.edu.cn
Yuping
Y
Tang
Ruolin
R
Yang
Jin-Ao
JA
Duan
Erxin
E
Shang
Shulan
S
Su
Min
M
Zhu
Dawei
D
Qian
D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D007529:Isoflavones / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D029909:Sophora / Q000737:chemistry*
D004365:Drugs, Chinese Herbal; D006027:Glycosides; D007529:Isoflavones; C529036:genistein 7-O-alpha-L-rhamnopyranoside-4'-O-(6'''-O-alpha-L-rhamnopyranosyl)-beta-sophoroside; C529035:genistein 7-O-beta-D-glucopyranoside-4'-O-(6'''- O-alpha-L-rhamnopyranosyl)-beta-sophoroside