반응 #92563

반응 방정식

7-(2-aminophenyl)-2-(4-(cyclopropylmethoxy)phenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile

NaOH

H2O2

→

desired product

수율 41.0%

7-(2-Aminophenyl)-2-(4-(cyclopropylmethoxy)phenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide

수율 41.0%

용매

EtOH

DMSO

반응 조건

후처리

1. 1
   기타the mixture was partitioned between 100 mL of H2O and 100 mL of EA
2. 2
   기타The organic layer was separated from aqueous layers
3. 3
   세척washed with saturated brines (100 mL×2)
4. 4
   건조dried over Na2SO4
5. 5
   농축concentrated
6. 6
   기타The residue was purified by chromatography column on silica gel (elution with DCM/MeOH)

실험 절차

To a solution of 7-(2-aminophenyl)-2-(4-(cyclopropylmethoxy)phenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile (350 mg, 0.91 mmol) in EtOH (4 mL) and DMSO (4 mL) was added NaOH aqueous solution (5 N, 2 mL) and H2O2 (2 mL). After stirring at 60° C. for 3 hr, the mixture was partitioned between 100 mL of H2O and 100 mL of EA. The organic layer was separated from aqueous layers, washed with saturated brines (100 mL×2), dried over Na2SO4 and concentrated. The residue was purified by chromatography column on silica gel (elution with DCM/MeOH) to afford 150 mg (41%) of desired product as a white solid. 1H NMR (400 MHz, DMSO-d6) δ 7.37 (d, J=8.8 Hz, 2H), 6.97-6.92 (m, 3H), 6.75 (br s, 1H), 6.67 (d, J=8.0 Hz, 1H), 6.49 (t, J=7.6 Hz, 1H), 6.27 (d, J=7.6 Hz, 1H), 5.58-5.54 (m, 1H), 5.16 (s, 2H), 3.83 (d, J=7.2 Hz, 2H), 3.27-3.24 (m, 1H), 3.01-2.92 (m, 1H), 2.23-2.13 (m, 1H), 2.13-2.07 (m, 1H), 1.24-1.18 (m, 1H), 0.59-0.54 (m, 2H) and 0.34-0.30 (m, 2H). MS (ESI) m/e [M+1]+ 404.0.

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