Results (
Indonesian) 2:
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0,4. Spektrometri identifikasi
fi
kasi senyawa
1
(3
β
, 5
α
, 6
β
, 25
R
) -6 - [(
β
-
D
-Glucopyranosyl) oxy] -spirostan-3-
il
O
-
β
-
D
-glucopyranosyl- (1
→
2) -
O
- [
β
-
D
-glucopyranosyl-
(1
→
3)] -
β
-
D
-galactopyranoside (
1
): bubuk amorf, mp
273
-
275 ° C; [
Α
]
D
25
-
58 ° (
c
0,1, CHCl
3
MeOH (1: 1)). IR
ν
max
(KBr): 3380 (OH), 2935 (CH), 1445, 1375, 1235, 1150, 1050, 915,
898, 860, 745 cm
-
1
.
1
H NMR (pyridine-
d
5
):
δ
3,93 (1 H,
m
, H-3),
0,95 (1 H,
m
, H-5), 3,88 (1H,
m
, H-6), 4,45 (1 H,
m
, H-16), 0.86 (3
H ,
s
, H-18), 1,20 (3H,
s
, H-19), 1,84 (1H,
m
, H-20), 1,17 (3H,
d
,
J
= 6.7Hz, H-21), 1,46 (1H,
m
, H-25), 3,38 (1H,
dd
,
J
= 10,7,
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