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Trifluoroacetic acid → (R)-1-(3-(4-fluorophenyl)-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea

HRID 571396
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HRID 571396 반응식
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:12]3[CH:13]=[N:14][C:15]([NH:17][C:18]([NH:20][C@@H:21]([C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=4)[CH3:22])=[O:19])=[CH:16][C:11]=3[N:10](C(C3C=CC=CC=3)(C3C=CC=CC=3)C3C=CC=CC=3)[N:9]=2)=[CH:4][CH:3]=1.C(O)(C(F)(F)F)=O.C([SiH](CC)CC)C>C(Cl)Cl>[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[C:12]3[CH:13]=[N:14][C:15]([NH:17][C:18]([NH:20][C@@H:21]([C:23]4[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=4)[CH3:22])=[O:19])=[CH:16][C:11]=3[NH:10][N:9]=2)=[CH:6][CH:7]=1
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참가 물질

5

반응물 3

HCID 6422Trifluoroacetic acidHCID 12052TriethylsilaneHCID 89525854(R)-1-(3-(4-fluorophenyl)-1-trityl-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea

생성물 1

HCID 71555466(R)-1-(3-(4-fluorophenyl)-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea수율 83%

시약·촉매·용매 1

HCID 6344Dichloromethane
용매

실험 절차

To the solution of (R)-1-(3-(4-fluorophenyl)-1-trityl-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea (61 mg, 0.10 mmol) in DCM (0.5 mL) was added TFA (0.5 mL) and triethylsilane (0.05 mL, 0.313 mmol). The mixture was stirred at room temperature for 10 min, concentrated in vacuo and purified on reversed phase HPLC to afford (R)-1-(3-(4-fluorophenyl)-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea (40 mg, 0.083 mmol, 83%) as a yellow solid. MS ESI calcd. for C21H19FN5O [M+H]+ 376, found 376. 1H NMR (600 MHz, DMSO-d6) δ 13.24 (s, 1H), 9.12 (s, 1H), 9.06 (s, 1H), 8.04 (dd, J=8.8, 5.5 Hz, 2H), 7.75 (s, 1H), 7.65 (s, 1H), 7.39-7.27 (m, 6H), 7.22-7.18 (m, 1H), 4.86 (m, 1H), 1.39 (d, J=6.9 Hz, 3H).

후처리

  1. concentrationconcentrated in vacuo
  2. custompurified on reversed phase HPLC

출처 및 근거

ORD 기록
ord-f9a883d7b73d4fa6bbbcf058d0705051
출처 데이터셋
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09023865B2

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