NATURAL PRODUCT RESEARCH
5
suspended in water with a ratio of 1:1, and partitioned with petroleum ether, EtOAc,
and n-BuOH (1:1, three times), successively. The n-BuOH extract (301 g) was further
fractioned by D101 macroporous resin column chromatography, eluted with a step
gradient of EtOH/H O (v/v), to yield Fr. A (67 g, 10% EtOH-H O), Fr. B (16 g, 30% EtOH-
2
2
H O), Fr. C (28 g, 50% EtOH-H O), Fr. D (18 g, 70% EtOH-H O), Fr. E (4 g, 100% EtOH-
2
2
2
H O). Fraction D was further fractioned by silica gel column eluted with CH Cl /CH OH
2
2
2
3
to give Fr. D1-D2. Through employed with HPLC (eluted with 30% MeOH-H O), com-
2
pound 4 (11.5 mg) and 1 (13.0 mg) were acquired from Fr. D1 and D2, respectively.
Fraction C was further separated by silica gel column, eluted with CH Cl /CH OH to
2
2
3
obtain Fr. C1-C10. Fraction C5 was separated by an Sephadex LH-20 column to get
subfractions. Then these subfractions were further separated by HPLC, eluted with
MeOH-H O 40% (v/v, flow rate 8 ml/min) to give compound 7 (3.5 mg). Fraction C4, C8
2
and C9 were further chromatographed on HPLC eluted with CH CN–H O 17%, 8% and
3
2
CH OH–H O 30%, respectively, to give compounds 6 (50.0 mg), 2 (6.0 mg), 3 (5.0 mg)
3
2
and 9 (10.0 mg). Fr. C3 was carried on Sephadex LH-20 column and HPLC (eluted with
MeOH-H O 45%), successively, to obtain compound 5 (5.0 mg). Fr. C7 was separated
2
by silica gel column (eluted with CH Cl /CH OH) to fragment into subfractions, then
2
2
3
Fr. C7.1 and C7.3 was chromatographed by HPLC eluted with CH OH-H O 35% and
3
2
20%, respectively, to give compounds 8 (13.0 mg) and 10 (2.3 mg).
3
.3.1. (4 R, 5S, 7R)-hinesolone-11-O-b-ᴅ-glucopyranoside (1)
Pale yellow oil; IR (KBr) m : 3411, 2967, 2923, 2859, 1631, 1616, 1383, 1054,
max
ꢀ
1
þ
1
1
(
032 cm ; HRESIMS: m/z 399.2378 [M þ H] (calcd for C H O , 399.2378). H NMR
21 35 7
0
400 MHz, CD OD): d 5.77 (1 H, s, H-1), 4.54 (1 H, d, 7.7 Hz, H-Glc-1 ), 3.18-3.86 (6 H, m),
3 H
2
2
.46 (1 H, dd, 16.8, 4.6 Hz, H-3b), 2.28 (1 H, dd, 16.8, 9.8 Hz, H-3a), 2.22 (1 H, m, H-7),
.18 (1 H, m, H-4), 2.08 (3 H, d, 0.6 Hz, H-15), 2.01 (1 H, dd, 13.6, 7.3 Hz, H-9b), 1.90 (2 H,
m, H-8), 1.89 (2 H, m, H-6), 1.70 (1 H, m, H-9a), 1.33 (3 H, s, H-12), 1.33 (3 H, s, H-13),
1
3
1
1
4
1
.09 (3 H, d, 6.8 Hz, H-14). C NMR (100 MHz, CD OD): d 202.3 (C-2), 173.0 (C-10),
3 C
0
25.9 (C-1), 98.6 (C-Glc-1 ), 79.4 (C-11), 78.5, 77.6, 75.4, 71.8, 62.8, 52.3 (C-7), 51.7 (C-5),
3.5 (C-3), 38.5 (C-4), 35.9 (C-6), 32.5 (C-9), 28.7 (C-8), 26.2 (C-13), 24.8 (C-12), 21.3 (C-
5), 16.7 (C-14).
0
0
0
0
3
.3.2. (7 R, 8S)-4, 7, 9, 3 , 9 -pentahydroxy-3-methoxyl-8-4 -oxyneolignan-3 -O-
b-ᴅ-glucopy-ranoside (2)
White amorphous powder; H-NMR data (CD OD, 600 MHz): d 7.11 (1 H, d, 1.5 Hz, H-
1
3
H
0
0
2
6
(
), 7.06 (1 H, d, 1.5 Hz, H-2), 6.90 (1 H, dd, 8.1, 1.5 Hz, H-6), 6.85 (1 H, d, 8.2 Hz, H-5 ),
0
.82 (1 H, dd, 8.2, 1.5 Hz, H-6 ), 6.80 (1 H, d, 8.1 Hz, H-5), 4.91 (1 H, d, 5.5 Hz, H-7), 4.84
1 H, d, 7.6 Hz, H-Glc-1 ), 4.38 (1 H, m, H-8), 3.93 (1 H, m, H-9a), 3.86 (3 H, s, H-OCH ),
0
3
0
3
7
.79 (1 H, dd, 12.0, 3.0 Hz, H-9b), 3.59 (2 H, t, H-9 ), 3.39-3.52 (6 H, m), 2.64 (2 H, t,
.3 Hz, H-7 ), 1.84 (1 H, m, 8 ); C-NMR data (CD OD, 150 MHz): d 149.7 (C-3 ), 148.8
0
0
0
13
0
3
C
0
0
(
(
7
C-3), 147.9 (C-4), 147.0 (C-4 ), 138.3 (C-1 ), 134.2 (C-1), 124.4 (C-6 ), 120.9 (C-6), 120.4
C-2 ), 120.2 (C-5 ), 115.9 (C-2), 111.7 (C-5), 103.7 (C-Glc-1 ), 87.1 (C-8), 78.2;77.9, 75.1,
0 0 0
3.4 (C-7), 71.5, 62.6, 62.2 (C-9 ), 61.6 (C-9), 56.5 (C-OCH ), 35.3 (C-8 ), 32.4 (C-7 ).
3
0
0
0