S12351HSthepeakdisappearafteraddedD2O413CNMR182116381615157215651495127912851163121510291037991611
5MSM300A1182B11182852AyellowcrystalwasisolatedfromaChi
esedrugHClMgpowderreactio
Molishreactio
，Srcl2NH4OH，1HNMR（DMSOd6）：671（1H，d，J2Hz），650（1H，d，J2Hz），737（1H，dd，J80Hz，20Hz），720（1H，d，J20Hz），687（1H，d，J80Hz），628（1H，s），970（1H，s），1078（1H，s），1058（1H，s），1250（1H，s）。31comparetheaciditya
ddesig
theisolati
gprocedure
HO
HOOOH
OHOOH
OOH
OH
OHO
OHOHO
OH
O
A4
B
C
comparetheaciditya
ddesig
theisolati
gprocedure
OHHOOOCH3
OHO
HO
OOH
O
OH
O
O
A
B
C
5Comparetheaciditya
dexplai
thereaso

17
fHO
OOH
HO
OOH
HO
OOH
O
OH
O
O
A
B
C
6Comparetheaciditya
dexplai
thereaso
HOOOH
HO
OOH
HO
OOHOHOOHO
O
A
OCH3HOOOH
B
C
7Comparetheaciditya
dexplai
thereaso
CH3HOOOH
OH
O
A
OH
O
B8Comparetheaciditya
dexplai
thereaso
OH
OH
OCH3HOOOHOHOHO
OHOOHH3COO
OH
HO
HOOOHOHOHO
OOCH3OHOHO
OH
A
B
OH
C
D
9Comparetheaciditya
dexplai
thereaso
glcO
OCH3
OOHOH
HO
OOHOHOHO
HO
O
OHOHO
OH
O
A
B
C
OH
10Disti
guishthefollowi
gcompou
dswithchemicalmethoda
dexplai
thereaso
O
OOH
HO
OH
O
OH
OH
OHO
O
OH
O
A
B
C
11Disti
guishthefollowi
gcompou
dswithchemicalmethoda
dexplai
thereaso
OHHOOOH
HO
OOH
glcO
OOHOH
OH
O
OH
O
OH
O
A
B
C
12Disti
guishthefollowi
gcompou
dswithchemicalmethoda
dexplai
thereaso
HO
HOOOH
OOH
OHOH
OHO
O
A
B
18
f13Disti
guishthefollowi
gcompou
dswithchemicalmethoda
dexplai
thereaso
HOOOH
OHOH
O
OH
O
A
B
14Disti
guishthefollowi
gcompou
dswithchemicalmethoda
dexplai
thereaso
Ruti
Aa
dquerceti
B
15Desig
aproceduretoisolatethefollowi
gcompou
ds
H3CO
HOOOH
OOH
HO
OOH
OH
O
OH
OHO
O
A
CH3HOOOHHO
B
CH3OOH
C
CH3HOOOCH3
16toisolatethefollowi
gcompou
dsa
dexplai
thereaso

OCH3OHOOHO
OCH3OHO
A
OHglcOOOCH3
B
C
OH
17toisolatethefollowi
gcompou
dsa
dexplai
thereaso
OH
HOO
HO
OHO
OOCH3
OCH3OHO
A
OH
O
B18Disti
guishthecompou
dswith
HO
HOOOHOH
C1HNMR
OOH
O
O
A19
OHHOOOHHO
B
OHO
Disti
guishthecompou
dswith13CNMR
OHOO
20Ifwewa
ttoisolatethefollowi
gcompou
dsbypolyamidecolum
withEtOHH2Oaseluti
gsolve
tsdetermi
etheseque
ce
OH
OH
HO
OH
OOH
HO
HOOOH
OOH
OH
OH
OHO
O
O
A
HOOOH
B
HO
HOOOH
C
OOH
Oglc
OHO
OrhaglcOHO
OH
O
D
E
19
F
f填空题：1Thepri
cipleofisolati
gflavo
oidaglyco
eswithgelcolum
chromatographyis2Thepri
cipleofisolati
gflavo
oidswithpolyamidecolr