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.
Tang
Yuping
Y
Nanjing University of Chinese Medicine, Nanjing, People's Republic of China. yupingtang@njutcm.edu.cn
Yang
Ruolin
R
Duan
Jin-Ao
JA
Shang
Erxin
E
Su
Shulan
S
Zhu
Min
M
Qian
Dawei
D
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