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inquiry1.Prompt Goods; 2.Flexible payment terms; 3.Documents & Certificate support. Name: Loteprednol etabonate Molecular Structure: Formula: C24H31ClO7 Molecular Weight : 466.95 Synonyms: LOTEPREDNOLETABONATE;Androsta-1,4-diene-17-carboxylicac
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chlorosulfuric acid chloromethyl ester
Loteprednol etabonate
Conditions | Yield |
---|---|
With tetra(n-butyl)ammonium hydrogensulfate; sodium hydrogencarbonate In dichloromethane at 20℃; for 2h; Time; | 92.8% |
Conditions | Yield |
---|---|
With dipotassium peroxodisulfate; potassium chloride for 3.5h; Reflux; | 92.6% |
Conditions | Yield |
---|---|
Stage #1: 17α-[(ethoxycarbonyl)oxy]-11β-hydroxy-3-oxoandrosta-1,4-diene-17β-carboxylic ethoxycarboxylic anhydride With sodium ethanolate In N,N,N,N,N,N-hexamethylphosphoric triamide at 20℃; for 24h; Large scale; Stage #2: Chloroiodomethane In N,N,N,N,N,N-hexamethylphosphoric triamide at 20℃; for 2h; Large scale; | 89% |
prednisolon
Loteprednol etabonate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: sodium periodate / methanol; water / 0.5 h / Heating; Large scale 2.1: triethylamine / dichloromethane / 0.5 h / 0 - 10 °C / Large scale 3.1: sodium ethanolate / N,N,N,N,N,N-hexamethylphosphoric triamide / 24 h / 20 °C / Large scale 3.2: 2 h / 20 °C / Large scale View Scheme | |
Multi-step reaction with 4 steps 1: sodium periodate / tetrahydrofuran; methanol; water / 2 h / 20 °C 2: sodium hydrogencarbonate; tetra(n-butyl)ammonium hydrogensulfate / dichloromethane / 3 h / 20 °C 3: diethylamine / water / pH 2 - 3 4: sodium hydrogencarbonate; tetra(n-butyl)ammonium hydrogensulfate / dichloromethane / 2 h / 20 °C View Scheme |
(1S,2R,10S,11S,14R,15S,17S)-14,17-dihydroxy-2,15-dimethyl-5-oxotetracyclo[8.7.0 02,7. 011,15]heptadeca-3,6-diene-14-carboxylic acid
Loteprednol etabonate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: sodium hydrogencarbonate; tetra(n-butyl)ammonium hydrogensulfate / dichloromethane / 3 h / 20 °C 2: diethylamine / water / pH 2 - 3 3: sodium hydrogencarbonate; tetra(n-butyl)ammonium hydrogensulfate / dichloromethane / 2 h / 20 °C View Scheme |
Loteprednol etabonate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: potassium hydrogencarbonate; glycidyl methyl ether / 15 h / 50 - 60 °C / Inert atmosphere 2: triethylamine / dichloromethane / 2 h / 0 - 5 °C / Inert atmosphere 3: potassium chloride; dipotassium peroxodisulfate / 3.5 h / Reflux View Scheme |
Loteprednol etabonate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: potassium acetate; epichlorohydrin / 15 h / 50 - 60 °C / Inert atmosphere 2: triethylamine / dichloromethane / 2 h / 0 - 5 °C / Inert atmosphere 3: potassium chloride; dipotassium peroxodisulfate / 3.5 h / Reflux View Scheme |
Loteprednol etabonate
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: potassium carbonate; copper(I) trifluoromethanesolfonate toluene complex / tetrahydrofuran / 5 h / Inert atmosphere; Reflux 2: potassium hydrogencarbonate; glycidyl methyl ether / 15 h / 50 - 60 °C / Inert atmosphere 3: triethylamine / dichloromethane / 2 h / 0 - 5 °C / Inert atmosphere 4: potassium chloride; dipotassium peroxodisulfate / 3.5 h / Reflux View Scheme | |
Multi-step reaction with 4 steps 1: caesium carbonate; copper(l) iodide / 2-methyltetrahydrofuran / 5 h / Inert atmosphere; Reflux 2: potassium acetate; epichlorohydrin / 15 h / 50 - 60 °C / Inert atmosphere 3: triethylamine / dichloromethane / 2 h / 0 - 5 °C / Inert atmosphere 4: potassium chloride; dipotassium peroxodisulfate / 3.5 h / Reflux View Scheme |
Loteprednol etabonate
(8S,10S,13S,14S,17R)-17-Ethoxycarbonyloxy-10,13-dimethyl-3-oxo-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthrene-17-carboxylic acid chloromethyl ester
Conditions | Yield |
---|---|
With sulfuryl dichloride; triethylamine In toluene at -20 - 22℃; for 4h; | 89% |
Loteprednol etabonate
Conditions | Yield |
---|---|
With acetic anhydride; dimethyl sulfoxide at 22℃; for 72h; | 72% |
Loteprednol etabonate
Conditions | Yield |
---|---|
In water; acetonitrile at 25℃; for 472h; Photolysis; | 21% |
Loteprednol etabonate
Conditions | Yield |
---|---|
In water at 25℃; for 472h; Photolysis; | A 0.4% B 1.2% |
Loteprednol etabonate
A
(1S,2R,10S,11S,14R,15S,17S)-14,17-dihydroxy-2,15-dimethyl-5-oxotetracyclo[8.7.0 02,7. 011,15]heptadeca-3,6-diene-14-carboxylic acid
Conditions | Yield |
---|---|
With heptakis(2,6-di-O-methyl)cyclomaltoheptaose; water at 37℃; Kinetics; Activation energy; Further Variations:; Temperatures; Reagents; Solvents; Hydrolysis; |
Loteprednol etabonate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 89 percent / SO2Cl2, Et3N / toluene / 4 h / -20 - 22 °C 2: 54 percent / SO2Cl2, pyridine / chlorobenzene / 3 h / -10 - 0 °C View Scheme | |
Multi-step reaction with 2 steps 1: 89 percent / SO2Cl2, Et3N / toluene / 4 h / -20 - 22 °C 2: 34 percent / Cl2, H2O, pyridine / CCl4; benzene / 10 h / 5 °C View Scheme |
Loteprednol etabonate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 89 percent / SO2Cl2, Et3N / toluene / 4 h / -20 - 22 °C 2: 16 percent / Cl2, H2O, pyridine / CCl4; benzene / 10 h / 5 °C View Scheme |
Loteprednol etabonate
chloromethyl 9,11α-epoxy-17α-ethoxycarbonyloxy-3-oxoandrosta-1,4-diene-17β-carboxylate
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 89 percent / SO2Cl2, Et3N / toluene / 4 h / -20 - 22 °C 2: 7.68 g / 3-chloroperoxybenzoic acid / CHCl3 / 120 h / 22 °C View Scheme |
Loteprednol etabonate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 89 percent / SO2Cl2, Et3N / toluene / 4 h / -20 - 22 °C 2: 7.68 g / 3-chloroperoxybenzoic acid / CHCl3 / 120 h / 22 °C 3: 14 percent / lithium perchlorate / acetonitrile / 75 h / 70 °C View Scheme |
Loteprednol etabonate
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 89 percent / SO2Cl2, Et3N / toluene / 4 h / -20 - 22 °C 2: 7.68 g / 3-chloroperoxybenzoic acid / CHCl3 / 120 h / 22 °C 3: 33 percent / LiN3 / acetonitrile / 50 h / 70 °C View Scheme |
Loteprednol etabonate
Conditions | Yield |
---|---|
With water In acetone at 50℃; under 112511 Torr; Solvent; Pressure; Supercritical conditions; |
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