Ethyl Acetate → HCID 67352373, compound

Participants

Reaction Steps

(S)-5-[3-(5-Acetoxymethyl-1,3,4-oxadiazol-2-yl)phenyl]-9-ethylamino-1,2,3,3a,4,5-hexahydro-5,8,10,10b-tetraazabenzo[e]azulen-6-one (20.0 mg, 0.0432 mmol) obtained in Step 1 was dissolved in methanol (2 mL), and the mixture was stirred at room temperature for 30 minutes after adding a 1 mol/L aqueous sodium hydroxide solution (2 mL). The mixture was diluted by addition of ethyl acetate, and washed with water. The organic layer was dried over anhydrous magnesium sulfate, concentrated under reduced pressure, and crystallized from diisopropylether to give the title compound (Compound 48) (6.0 mg, 33%).

Provenance & Evidence