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乙二醇
甲醛
63148-62-9
MDI
丁酮
二甲基亚砜
碳酸氢钠
471-34-1
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乙二醇
甲醛
63148-62-9
MDI
丁酮
二甲基亚砜
碳酸氢钠
471-34-1
脱氧土大黄苷
合成路线
(共 9 条)
30197-14-9
脱氧土大黄苷
→
反应条件
27208-80-6
虎杖苷
反应条件
ethyl mercaptan sodium salt in N,N-dimethyl-formamide T=140°C; Deacetylation; 10 h;
参考文献
Orsini, Fulvia; Pelizzoni, Francesca; Bellini, Barbara; Miglierini, Giuliana
Carbohydrate Research, 1997 , vol. 301, # 3-4 p. 95 - 109
30197-14-9
脱氧土大黄苷
→
反应条件
27208-80-6
虎杖苷
反应条件
ethyl mercaptan sodium salt in N,N-dimethyl-formamide T=140°C; Deacetylation; 10 h;
参考文献
Orsini, Fulvia; Pelizzoni, Francesca; Bellini, Barbara; Miglierini, Giuliana
Carbohydrate Research, 1997 , vol. 301, # 3-4 p. 95 - 109
197440-96-3
→
反应条件
30197-14-9
脱氧土大黄苷
反应条件
sodium methylate in methanol T=20°C; Deacetylation; 2 h;
参考文献
Orsini, Fulvia; Pelizzoni, Francesca; Bellini, Barbara; Miglierini, Giuliana
Carbohydrate Research, 1997 , vol. 301, # 3-4 p. 95 - 109
65728-21-4
→
反应条件
30197-14-9
脱氧土大黄苷
反应条件
1: 32 percent / benzyltriethylammonium bromide; NaOH / CHCl3; H2O / 10 h / 60 °C 2: sodium methoxide / methanol / 2 h / 20 °C View Scheme
参考文献
Orsini, Fulvia; Pelizzoni, Francesca; Bellini, Barbara; Miglierini, Giuliana
Carbohydrate Research, 1997 , vol. 301, # 3-4 p. 95 - 109
3462-97-3
(4-甲氧基苄基)三苯基氯化膦
→
反应条件
30197-14-9
脱氧土大黄苷
反应条件
1.1: butyllithium / hexane; tetrahydrofuran / 15 - 20 °C 1.2: 78 percent / hexane; tetrahydrofuran / 1 h / 20 °C 2.1: 68.3 percent / tetrabutylammonium fluoride / tetrahydrofuran / 0.25 h / 20 °C 3.1: 32 percent / benzyltriethylammonium bromide; NaOH / CHCl3; H2O / 10 h / 60 °C 4.1: sodium methoxide / methanol / 2 h / 20 °C View Scheme
参考文献
Orsini, Fulvia; Pelizzoni, Francesca; Bellini, Barbara; Miglierini, Giuliana
Carbohydrate Research, 1997 , vol. 301, # 3-4 p. 95 - 109
187803-40-3
→
反应条件
30197-14-9
脱氧土大黄苷
反应条件
1.1: butyllithium / hexane; tetrahydrofuran / 15 - 20 °C 1.2: 78 percent / hexane; tetrahydrofuran / 1 h / 20 °C 2.1: 68.3 percent / tetrabutylammonium fluoride / tetrahydrofuran / 0.25 h / 20 °C 3.1: 32 percent / benzyltriethylammonium bromide; NaOH / CHCl3; H2O / 10 h / 60 °C 4.1: sodium methoxide / methanol / 2 h / 20 °C View Scheme
参考文献
Orsini, Fulvia; Pelizzoni, Francesca; Bellini, Barbara; Miglierini, Giuliana
Carbohydrate Research, 1997 , vol. 301, # 3-4 p. 95 - 109
824-94-2
4-甲氧基氯苄
→
反应条件
30197-14-9
脱氧土大黄苷
反应条件
1.1: 85 percent / toluene 2.1: butyllithium / hexane; tetrahydrofuran / 15 - 20 °C 2.2: 78 percent / hexane; tetrahydrofuran / 1 h / 20 °C 3.1: 68.3 percent / tetrabutylammonium fluoride / tetrahydrofuran / 0.25 h / 20 °C 4.1: 32 percent / benzyltriethylammonium bromide; NaOH / CHCl3; H2O / 10 h / 60 °C 5.1: sodium methoxide / methanol / 2 h / 20 °C View Scheme
参考文献
Orsini, Fulvia; Pelizzoni, Francesca; Bellini, Barbara; Miglierini, Giuliana
Carbohydrate Research, 1997 , vol. 301, # 3-4 p. 95 - 109
572-09-8
乙酰溴-α-D-葡萄糖
→
反应条件
30197-14-9
脱氧土大黄苷
反应条件
1: 32 percent / benzyltriethylammonium bromide; NaOH / CHCl3; H2O / 10 h / 60 °C 2: sodium methoxide / methanol / 2 h / 20 °C View Scheme
参考文献
Orsini, Fulvia; Pelizzoni, Francesca; Bellini, Barbara; Miglierini, Giuliana
Carbohydrate Research, 1997 , vol. 301, # 3-4 p. 95 - 109
94356-29-3
→
反应条件
149-91-7
没食子酸
+
30197-14-9
脱氧土大黄苷
反应条件
tannase in water 1 h; Ambient temperature;
参考文献
Kashiwada, Yoshiki; Nonaka, Gen-ichiro; Nishioka, Itsuo
Chemical and Pharmaceutical Bulletin, 1984 , vol. 32, # 9 p. 3501 - 3517