تفاعل #3129
ord-76f66933b8914bb1a7437f5254a0de57
معادلة التفاعل
المتفاعلات
الكواشف
المذيبات
ظروف التفاعل
المعالجة
- 1استخلاصThe target substance was extracted from the mixture by ethyl acetate
- 2غسيلThe extract was washed with saturated sodium chloride solution
- 3تجفيفwas dried over anhydrous sodium sulfate
- 4تركيزThis solution was concentrated under reduced pressure
- 5أخرىwas purified by a preparative TLC (Merck TLC plate silica gel 60 F254, 20×20 cm, layer thickness 0.25 mm, 2 pieces, ethyl acetate:hexane 4:1)
الإجراء التجريبي
A hydrogen fluoride-pyridine solution (0.1 ml) was added to a solution of ice-cooled acetonitrile (1 ml) and pyridine (0.1 ml), then a pyridine (0.1 ml) solution of (11R,12S,13E,15S)-9-butyryloxy-11,15-bis(tert-butyldimethylsiloxy)-7-thiaprosta-8,13-dienoic acid (79 mg) was added. The ice bath was detached, then the solution was stirred for 20 hours while raising it to room temperature. The reaction solution was poured into a mixture of ethyl acetate and saturated sodium hydrogencarbonate. The target substance was extracted from the mixture by ethyl acetate. The extract was washed with saturated sodium chloride solution, then was dried over anhydrous sodium sulfate. This solution was concentrated under reduced pressure, then was purified by a preparative TLC (Merck TLC plate silica gel 60 F254, 20×20 cm, layer thickness 0.25 mm, 2 pieces, ethyl acetate:hexane 4:1) to obtain (11R,12S,13E,15S)-9-butyryloxy-11,15-dihydroxy-7-thiaprosta-8,13-diene acid (17 mg, 33%).