Ammonia → 2-(4-((2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)methyl)phenyl)acetamide
반응식
[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[N:13]=[C:12]3[CH2:14][CH2:15][CH2:16][C:11]3=[C:10]([CH2:17][C:18]3[CH:23]=[CH:22][C:21]([CH2:24][C:25]([O:27]C)=O)=[CH:20][CH:19]=3)[CH:9]=2)[CH:5]=[CH:6][CH:7]=1.[Cl-].[NH4+:30].N>CO>[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[N:13]=[C:12]3[CH2:14][CH2:15][CH2:16][C:11]3=[C:10]([CH2:17][C:18]3[CH:23]=[CH:22][C:21]([CH2:24][C:25]([NH2:30])=[O:27])=[CH:20][CH:19]=3)[CH:9]=2)[CH:5]=[CH:6][CH:7]=1참가 물질
반응 조건
- 온도
- 100 °C
실험 절차
A 10-mL vial was charged with methyl 2-(4-((2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)methyl)phenyl)acetate (0.036 g, 0.09 mmol) and ammonium chloride (0.015 g, 0.27 mmol). To this was added methanol (2 mL) followed by NH3 (4 mL, 7N in methanol, 27.6 mmol). The vial was sealed and the resulting mixture was stirred at 100° C. for 48 hr. After this time, the crude reaction solution concentrated under reduced pressure. The residue was adsorbed onto silica then purified by chromatography on silica using hexanes/ethyl acetate (10:0 to 0:10) as eluent to afford 2-(4-((2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)methyl)phenyl)acetamide (0.026 g, 79%) as a white solid. MW=376.88. 1H NMR (CDCl3, 500 MHz) δ 7.93-7.89 (m, 1H), 7.81-7.74 (m, 1H), 7.39-7.30 (m, 2H), 7.26-7.14 (m, 5H), 5.55-5.25 (m, 2H), 3.97 (s, 2H), 3.56 (s, 2H), 3.08 (t, J=8.0 Hz, 2H), 2.87 (t, J=7.5 Hz, 2H), 2.14 (quin, J=7.5 Hz, 2H). MS: APCI+, m/z 377 [M+H]+. Treatment of 2-(4-((2-(3-chlorophenyl)-6,7-dihydro-5H-cyclopenta[b]pyridin-4-yl)methyl)phenyl)acetamide with 1.25M HCl in methanol afforded the title compound (0.037 g, 99%) as a white solid. MW=413.34. M.p. 178-180° C. 1H NMR (DMSO-d6, 500 MHz) δ 8.11-8.07 (m, 1H), 8.00-7.93 (m, 1H), 7.81 (s, 1H), 7.57-7.47 (m, 2H), 7.43 (br s, 1H), 7.25-7.34 (m, 4H), 6.84 (br s, 1H), 4.60 (br s, 1H), 4.00 (s, 2H), 3.31 (s, 2H), 3.00 (t, J=7.5 Hz, 2H), 2.87 (t, J=7.5 Hz, 2H), 2.07 (quin, J=7.5 Hz, 2H); APCI MS m/z 377 [M+H]+.
후처리
- customThe vial was sealed
- customAfter this time, the crude reaction solution
- concentrationconcentrated under reduced pressure
- customthen purified by chromatography on silica
출처 및 근거
- ORD 기록
- ord-e79f7250dca44033a395cdbf3f90305e
- 출처 데이터셋
- uspto-grants-2015_12
- 특허 번호
- US09221843B2
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