反应详情

3-[4-(Aminomethyl)-1,2,5-oxadiazol-3-yl]-4-(3-chloro-4-fluorophenyl)-1,2,4-oxadiazol-5(4H)-one (10 mg, 0.003 mmol) was dissolved in ACN (0.2 mL) and DCM (0.2 mL). Phenyl isocyanate (7.6 mg, 0.064 mmol) DIPEA(0.012 mg, 0.096 mmol) and DMAP (0.4 mg, 0.03 mmol) were added and stirred at rt for 6 hrs. The reaction was then diluted with MeOH and purified by preparative LCMS. The intermediate was stripped to dryness, redissolved in EtOH (1 mL) and 1 M of sodium hydroxide in water (0.06 mL) was added. The reaction was stirred at rt for 1 hour, quenched with acetic acid and diluted with MeOH. The crude was purified by preparative LCMS to afford the desired product (2.0 mg). MF=C17H14ClFN6O3; LCMS calculated for C17H15ClFN6O3(M+H)+: m/z=405.1.

1. custompurified by preparative LCMS
2. dissolutionredissolved in EtOH (1 mL)
3. addition1 M of sodium hydroxide in water (0.06 mL) was added
4. stirringThe reaction was stirred at rt for 1 hour
5. customquenched with acetic acid
6. additiondiluted with MeOH
7. customThe crude was purified by preparative LCMS