反应详情

A solution of p-nitrobenzyl (5R,6S)-2-azido-6-[(R)-1-hydroxyethyl]carbapen-2-em-3-carboxylate (37 mg, 0.1 mmol) and triethylamine (14 μl, 0.1 mmol) in anhydrous tetrahydrofuran (2 ml) is cooled in an ice-bath while hydrogen sulfide is gently bubbled in over 15 minutes. After an additional 15 minutes at 0°, the solution is evaporated under vacuum and the residue is purified by preparative layer chromatography on silica gel to afford p-nitrobenzyl (5R,6S)-2-amino-6-[(R)-1-hydroxyethyl]carbapen-2-em-3-carboxylate.

1. customis gently bubbled in over 15 minutes
2. customthe solution is evaporated under vacuum
3. customthe residue is purified by preparative layer chromatography on silica gel