Cesium carbonate → (R)-N-(6-phenoxypyrimidin-4-yl)-4H-1'-azaspiro[oxazole-5,3'-bicyclo[2.2.2]octan]-2-amine

HRID 250060

반응식

HRID 250060 반응식
Cl.Cl.[NH2:3][CH2:4][C@@:5]1([OH:13])[CH:10]2[CH2:11][CH2:12][N:7]([CH2:8][CH2:9]2)[CH2:6]1.C([O-])([O-])=O.[Cs+].[Cs+].[N:20]([C:23]1[CH:28]=[C:27]([O:29][C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)[N:26]=[CH:25][N:24]=1)=[C:21]=S.C(N=C=NC(C)C)(C)C>CN(C)C=O>[O:29]([C:27]1[N:26]=[CH:25][N:24]=[C:23]([NH:20][C:21]2[O:13][C@:5]3([CH2:4][N:3]=2)[CH:10]2[CH2:9][CH2:8][N:7]([CH2:12][CH2:11]2)[CH2:6]3)[CH:28]=1)[C:30]1[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=1

참가 물질

6

실험 절차

To (S)-3-(aminomethyl)quinuclidin-3-ol dihydrochloride (0.170 g, 0.742 mmol) in N,N-dimethylformamide (20 mL) was added Cs2CO3 (0.604 g, 1.854 mmol) and 4-isothiocyanato-6-phenoxypyrimidine (0.17 g, 0.742 mmol). The suspension was stirred at room temperature for 30 minutes. N,N′-diisopropylcarbodiimide (0.347 mL, 2.225 mmol) was then added and the mixture was continued to stir at room temperature for 18 hours. The mixture was concentrated and purified by silica gel chromatography (5-25% 9:1 methanol:ammonium hydroxide-ethyl acetate) to afford (R)—N-(6-phenoxypyrimidin-4-yl)-4H-1′-azaspiro[oxazole-5,3′-bicyclo[2.2.2]octan]-2-amine (0.21 g, 0.72 mmol, 48.2% yield) as a pale yellow solid. 1H NMR (500 MHz, MeOD) δ ppm 8.43 (1 H, s), 7.47 (2 H, t), 7.30 (1 H, t), 7.16 (2 H, d), 6.21 (1 H, br. s.), 4.03 (1 H, d), 3.72 (1 H, d), 3.22 (1 H, d), 3.11 (1 H, d), 2.73-2.99 (4 H, m), 2.00-2.18 (2 H, m), 1.54-1.88 (3 H, m). LCMS R.T.=1.46; [M+H]+=352.19.

후처리

  1. stirringto stir at room temperature for 18 hours
  2. concentrationThe mixture was concentrated
  3. custompurified by silica gel chromatography (5-25% 9:1 methanol:ammonium hydroxide-ethyl acetate)

출처 및 근거

ORD 기록
ord-f4390104ac6343748b55411ee6a8823e
출처 데이터셋
uspto-grants-2011_01
특허 번호
US07863291B2

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