Sodium Hydroxide → 2-(1-(Tert-butoxycarbonyl)-3-(3-methoxyphenyl)-5-oxo-8,11-dioxa-1,4-diazaspiro[5.6]dodecan-4-yl)ethanoic acid

Participants

Reaction Steps

2.5 ml (2.5 mmol) of a 1N aqueous sodium hydroxide solution were added to 0.38 g (0.82 mmol) tert-butyl (3-(3-methoxyphenyl)-5-oxo-8,11-dioxa-1,4-diazaspiro[5.6]dodecane-1-carboxylate in 5 ml MeOH. After 1 h MeOH was distilled off and the aqueous solution was acidified with 1N hydrochloric acid. The aqueous phase was extracted with ethyl acetate. The ethyl acetate phase was dried and evaporated down.

Provenance & Evidence