Isopropanol → HCID 86737610, compound
Reaction equation
[F:1][C@:2]12[C@@H:24]([OH:25])[CH2:23][C@@:22]3([CH3:26])[C@@H:12]([CH2:13][C@@H:14]([OH:28])[C@:15]3([OH:27])[C:16](=[O:21])[C:17]([O:19][CH3:20])=[O:18])[C@@H:11]1[CH2:10][CH2:9][C:8]1[C@:3]2([CH3:30])[CH:4]=[CH:5][C:6](=[O:29])[CH:7]=1.[C-]#N.[Na+].[CH:34](O)(C)[CH3:35]>>[F:1][C@:2]12[C@@H:24]([OH:25])[CH2:23][C@@:22]3([CH3:26])[C@@H:12]([CH2:13][C@@H:14]([OH:28])[C@:15]3([OH:27])[C:16](=[O:21])[C:17]([O:19][CH2:20][CH2:34][CH3:35])=[O:18])[C@@H:11]1[CH2:10][CH2:9][C:8]1[C@:3]2([CH3:30])[CH:4]=[CH:5][C:6](=[O:29])[CH:7]=1Participants
4
Procedure
A solution of (11β,16α)-9-fluoro-11,16,17-trihydroxy-3,20-dioxopregna-1,4-dien-21-oic acid, methyl ester (1.0 g) in anhydrous isopropyl alcohol (100 ml) containing sodium cyanide (100 mg) is refluxed for 3.0 hours. The isopropanol is then removed by distillation in vacuo and the residue is washed with water, dried and crystallized to afford the title compound.
Workup
- temperatureis refluxed for 3.0 hours
- customThe isopropanol is then removed by distillation in vacuo
- washthe residue is washed with water
- customdried
- customcrystallized
Sources & evidence
- ORD record
- ord-70ce152f981c4a4daab53b5c389e1097
- Source dataset
- uspto-grants-1981_03
- Patent number
- US04257969
Reaction notes
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