Sodium Hydroxide → (+)-5-[[(2R,4S)-4-hydroxy-1-(4-methoxyphenethyl)pyrrolidin-2-yl]methyl]-5,11-dihydrodibenzo[b,e][1,4]oxazepine

Participants

Reaction Steps

To 870 mg (1.63 mmol) of (+)-5-[[(2R,4S)-4-benzoyloxy-1-(4-methoxyphenethyl)pyrrolidin-2-yl]methyl]-5,11-dihydrodibenzo[b,e][1,4]oxazepine in 15 ml of ether was added 460 mg (11.4 mmol) of NaOH in methanol (60 ml) and the mixture was stirred at room temperature for 1 hour. The mixture was concentrated in vacuo, then water was added to the residue and the products were extracted with ether. The organic layer was washed with saturated aqueous sodium chloride, dried over anhydrous sodium sulfate, and concentrated in vacuo. The residue was purified by silicagel column chromatography (ethyl acetate) to give 680 mg (97.1%) of (+)-5-[[(2R,4S)-4-hydroxy-1-(4-methoxyphenethyl)pyrrolidin-2-yl]methyl]-5,11-dihydrodibenzo[b,e][1,4]oxazepine as yellow amorphous.

Provenance & Evidence