반응 #217689

반응 방정식

sodium hydrogen carbonate

trimethylphosphine tetrahydrofuran

(1R,2R,3S,5R,6R)-2-azido-6-fluoro-3-hydroxy-bicyclo[3.1.0]hexane-2,6-dicarboxylic acid diethyl ester

→

(1R,2R,3S,5R,6R)-2-amino-6-fluoro-3-hydroxy-bicyclo[3.1.0]hexane-2,6-dicarboxylic acid diethyl ester

수율 72.8%

용매

water

diethyl ether

tetrahydrofuran

반응 조건

후처리

1. 1
   기타After separation
2. 2
   추출the aqueous layer was extracted twice with chloroform
3. 3
   세척washed with a saturated aqueous solution of sodium chloride
4. 4
   건조dried over anhydrous sodium sulfate
5. 5
   여과The desiccant was filtered off
6. 6
   농축the filtrate was concentrated under reduced pressure The residue
7. 7
   기타was purified by column chromatography (silica gel: Wako gel C200 (made by Wako Pure Chemical Industries Ltd.), eluent: chloroform-ethanol=50:1)

실험 절차

0.89 mL of a solution of 1M trimethylphosphine/tetrahydrofuran was added to 245 mg of (1R,2R,3S,5R,6R)-2-azido-6-fluoro-3-hydroxy-bicyclo[3.1.0]hexane-2,6-dicarboxylic acid diethyl ester dissolved in 7.0 mL of tetrahydrofuran and 0.7 mL of water, and the mixture was stirred for 12 hours at room temperature. After the mixture was diluted with 14 mL of diethyl ether, a saturated aqueous solution of sodium hydrogen carbonate was added thereto, and the mixture was stirred for 1 hour at room temperature. After separation, the aqueous layer was extracted twice with chloroform. The organic layers were combined, washed with a saturated aqueous solution of sodium chloride and then dried over anhydrous sodium sulfate. The desiccant was filtered off, and the filtrate was concentrated under reduced pressure The residue was purified by column chromatography (silica gel: Wako gel C200 (made by Wako Pure Chemical Industries Ltd.), eluent: chloroform-ethanol=50:1), thereby yielding 163 mg of (1R,2R,3S,5R,6R)-2-amino-6-fluoro-3-hydroxy-bicyclo[3.1.0]hexane-2,6-dicarboxylic acid diethyl ester.

출처