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Min.Order:1 Gram
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Min.Order:1 Gram
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Min.Order:1 Gram
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inquiryConditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: toluene-4-sulfonic acid / tetrahydrofuran / 2 h / 15 - 20 °C / Inert atmosphere 2: aluminum (III) chloride / 16.5 h / 10 - 30 °C 3: tetrahydrofuran; water / 8 h / 50 - 80 °C / 450.05 Torr View Scheme |
Conditions | Yield |
---|---|
In tetrahydrofuran; water at 50 - 80℃; under 450.045 Torr; for 8h; |
betamethasone dipropionate
17α,21-dihydroxy-9α-fluoro-16β-methylpregna-1,4,11(12)-triene-3,20-dione 17,21-dipropionate
Conditions | Yield |
---|---|
With (diethylamido)sulfur trifluoride In dichloromethane for 16h; Ambient temperature; | 93% |
betamethasone dipropionate
Conditions | Yield |
---|---|
In toluene | 60% |
betamethasone dipropionate
9α-fluoro-6β,11β,17α,21-tetrahydroxy-16β-methyl-1,4-pregnadiene-3,20-dione 17,21-dipropionate
Conditions | Yield |
---|---|
With selenious acid In 1,4-dioxane at 100℃; for 72h; | 44.2% |
With selenium(IV) oxide In 1,4-dioxane at 110℃; for 2.5h; | 25% |
Multi-step reaction with 2 steps 1: pyridine / 18 h / 60 °C 2: oxygen / CHCl3 / 3 h View Scheme |
betamethasone dipropionate
A
betamethasone
B
Betamethasone propionate
C
6β-hydroxybetamethasone
D
6β-hydroxybetamethasone 17-propionate
Conditions | Yield |
---|---|
With phosphate buffer; air; plasma of 20 d pregnant Sprague-Dawley rat at 37℃; for 1h; Product distribution; metabolism with tissues (plasma, liver, brain, placenta) from mothers and fetuses of Sprague-Dawley rats sacrificed on day 20 of pregnancy and mice on day 17 of pregnancy, further in vivo; | A 14.8 % Chromat. B 67.8 % Chromat. C 1.4 % Chromat. D 2.3 % Chromat. |
Conditions | Yield |
---|---|
With hydrogenchloride In ethanol for 6h; Ambient temperature; |
betamethasone dipropionate
benzoyl chloride
9α-fluoro-3,11β,17α,21-tetrahydroxy-16β-methyl-1,3,5-pregnatriene-20-one 3-benzoate 17,21-dipropionate
Conditions | Yield |
---|---|
In pyridine at 60℃; for 18h; |
Conditions | Yield |
---|---|
With sulfuric acid In acetonitrile at 20℃; for 20h; Product distribution; Further Variations:; Temperatures; |
betamethasone dipropionate
Conditions | Yield |
---|---|
With sodium hydroxide In acetonitrile at 20℃; for 0.333333h; Mattox rearrangement; | A 30 % Chromat. B 10 % Chromat. |
With sodium hydroxide In water; acetonitrile at 20℃; for 0.333333h; Mattox rearrangement; |
betamethasone dipropionate
9α-fluoro-11β,17α,21-trihydroxy-16β-methyl-1,4-pregnadiene-3,6,20-trione 17,21-dipropionate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: pyridine / 18 h / 60 °C 2: oxygen / CHCl3 / 3 h 3: 77 percent / pyridne/ CF3COOH/ 1-cyclohexyl-3-(2-morpholinoethyl) carbodiimide metho-p-toluenesulfonate / dimethylsulfoxide; benzene / 2 h / Ambient temperature View Scheme |
betamethasone dipropionate
9α-fluoro-6,11β,17α,21-tetrahydroxy-16β-methyl-1,4,6-pregnatriene-3,20-dione 6-acetate 17,21-dipropionate
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: pyridine / 18 h / 60 °C 2: oxygen / CHCl3 / 3 h 3: 77 percent / pyridne/ CF3COOH/ 1-cyclohexyl-3-(2-morpholinoethyl) carbodiimide metho-p-toluenesulfonate / dimethylsulfoxide; benzene / 2 h / Ambient temperature 4: 51 percent / pyridine / 5 h / Ambient temperature View Scheme |
betamethasone dipropionate
9α-fluoro-6,11β,17α,21-tetrahydroxy-16β-methyl-1,4,6-pregnatriene-3,20-dione 6-isobutyrate 17,21-dipropionate
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: pyridine / 18 h / 60 °C 2: oxygen / CHCl3 / 3 h 3: 77 percent / pyridne/ CF3COOH/ 1-cyclohexyl-3-(2-morpholinoethyl) carbodiimide metho-p-toluenesulfonate / dimethylsulfoxide; benzene / 2 h / Ambient temperature 4: 63 percent / pyridine / 5 h / Ambient temperature View Scheme |
betamethasone dipropionate
9α-fluoro-6,11β,17α,21-tetrahydroxy-16β-methyl-1,4,6-pregnatriene-3,20-dione 6-valerate 17,21-dipropionate
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: pyridine / 18 h / 60 °C 2: oxygen / CHCl3 / 3 h 3: 77 percent / pyridne/ CF3COOH/ 1-cyclohexyl-3-(2-morpholinoethyl) carbodiimide metho-p-toluenesulfonate / dimethylsulfoxide; benzene / 2 h / Ambient temperature 4: 58 percent / pyridine / 5 h / Ambient temperature View Scheme |
betamethasone dipropionate
9α-fluoro-6,11β,17α,21-tetrahydroxy-16β-methyl-1,4,6-pregnatriene-3,20-dione 6-trimethylacetate 17,21-dipropionate
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: pyridine / 18 h / 60 °C 2: oxygen / CHCl3 / 3 h 3: 77 percent / pyridne/ CF3COOH/ 1-cyclohexyl-3-(2-morpholinoethyl) carbodiimide metho-p-toluenesulfonate / dimethylsulfoxide; benzene / 2 h / Ambient temperature 4: 56 percent / various solvent(s) / 5 h / Ambient temperature View Scheme |
betamethasone dipropionate
9α-fluoro-6,11β,17α,21-tetrahydroxy-16β-methyl-1,4,6-pregnatriene-3,20-dione 6-benzoate 17,21-dipropionate
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: pyridine / 18 h / 60 °C 2: oxygen / CHCl3 / 3 h 3: 77 percent / pyridne/ CF3COOH/ 1-cyclohexyl-3-(2-morpholinoethyl) carbodiimide metho-p-toluenesulfonate / dimethylsulfoxide; benzene / 2 h / Ambient temperature 4: 70 percent / pyridine / 5 h / Ambient temperature View Scheme |
betamethasone dipropionate
9α-fluoro-6,11β,17α,21-tetrahydroxy-16β-methyl-1,4,6-pregnatriene-3,20-dione 6-methanesulfonate 17,21-dipropionate
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: pyridine / 18 h / 60 °C 2: oxygen / CHCl3 / 3 h 3: 77 percent / pyridne/ CF3COOH/ 1-cyclohexyl-3-(2-morpholinoethyl) carbodiimide metho-p-toluenesulfonate / dimethylsulfoxide; benzene / 2 h / Ambient temperature 4: 41 percent / pyridine / 5 h / Ambient temperature View Scheme |
betamethasone dipropionate
17α,21-dihydroxy-9α-fluoro-16β-methylpregna-1,4,11(12)-triene-3,20-dione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 93 percent / (diethylamido)sulfur trifluoride (DAST) / CH2Cl2 / 16 h / Ambient temperature 2: 88 percent / NaHCO3 / methanol / 1 h / Heating View Scheme |
betamethasone dipropionate
16β-methyl-12β,17α,21-trihydroxypregna-1,4,9(11)-triene-3,20-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 93 percent / (diethylamido)sulfur trifluoride (DAST) / CH2Cl2 / 16 h / Ambient temperature 2: 88 percent / NaHCO3 / methanol / 1 h / Heating 3: 57 percent / 48percent aq. HF / 1.5 h / 22 °C View Scheme |
betamethasone dipropionate
16β-methyl-12α,17α,21-trihydroxypregna-1,4,9(11)-triene-3,20-dione
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 93 percent / (diethylamido)sulfur trifluoride (DAST) / CH2Cl2 / 16 h / Ambient temperature 2: 88 percent / NaHCO3 / methanol / 1 h / Heating 3: 19 percent / 48percent aq. HF / 1.5 h / 22 °C View Scheme |
betamethasone dipropionate
9α-Fluoro-11β,17α,21-trihydroxy-16β-methyl-5β-pregnane-3,20-dione 17,21-dipropionate
Conditions | Yield |
---|---|
palladium In dichloromethane; 4,4-dichlorobutan-2-one; acetone | |
palladium In dichloromethane; 4,4-dichlorobutan-2-one; acetone |
betamethasone dipropionate
9α-Fluoro-16β-methyl-11,17-21-trihydroxypregna-1,4-dien-20-one-3-thione
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: toluene 2: sodium hydroxide; acetic acid / methanol View Scheme |
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