Ethylamine tetrahydrofuran → HCID 67351604, compound

Participants

Reaction Conditions

Reaction Steps

(S)-5-[3-(7-Ethylamino-9-methanesulfonyl-6-oxo-2,3,3a,4-tetrahydro-1H,6H-5,8,10,10b-tetraazabenzo[e]azulen-5-yl)phenyl]-3-methyl-1,3,4-oxadiazol-2(3H)-one (23.6 mg, 0.0472 mmol) obtained in Step 1 was dissolved in THF (2.0 mL), and the mixture was stirred at 90° C. for 30 minutes under microwave (CEM; Discover; 250 watts) irradiation after adding a 2.0 mol/L ethylamine/THF solution (1.0 mL, 2.00 mmol). The mixture was further stirred at 90° C. for 30 minutes under microwave (CEM; Discover; 250 watts) irradiation after adding a 2.0 mol/L ethylamine/THF solution (0.049 mL, 0.0981 mmol). The mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography to give the title compound (Compound 158) (20.8 mg, 88%).

Provenance & Evidence