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Methanol → N,N-Dimethyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxamide

HRID 2046920
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HRID 2046920 반응식
Cl.[CH3:2][C:3]1([CH3:21])[C:7]([CH3:9])([CH3:8])[O:6][B:5]([C:10]2[CH:11]=[N:12][N:13]([CH:15]3[CH2:20][CH2:19][NH:18][CH2:17][CH2:16]3)[CH:14]=2)[O:4]1.CCN(C(C)C)C(C)C.[CH3:31][N:32]([CH3:36])[C:33](Cl)=[O:34].CO>CN(C=O)C>[CH3:31][N:32]([CH3:36])[C:33]([N:18]1[CH2:19][CH2:20][CH:15]([N:13]2[CH:14]=[C:10]([B:5]3[O:6][C:7]([CH3:8])([CH3:9])[C:3]([CH3:21])([CH3:2])[O:4]3)[CH:11]=[N:12]2)[CH2:16][CH2:17]1)=[O:34]
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6

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HCID 887MethanolHCID 6598Dimethylcarbamoyl ChlorideHCID 81531DiisopropylethylamineHCID 667591824-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine hydrochloride

생성물 1

HCID 67365794N,N-Dimethyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)piperidine-1-carboxamide

시약·촉매·용매 1

HCID 6228
Dimethylformamide
용매
2회

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온도
0 °C

실험 절차

To a solution of 4-[4-(4,4,5,5-tetramethyl[1,3,2]dioxaborolan-2-yl)-pyrazol-1-yl]-piperidine hydrochloride (253.6 mg, 0.809 mmol) in DMF (6 mL), DIPEA (0.7 mL, 4 mmol) was added at rt. The solution was cooled to 0° C. and N,N-dimethylcarbamoyl chloride (107.7 mg, 1.002 mmol) in DMF (1 mL) was added. The reaction was stirred from 0° C.→rt for 30 min. MeOH was added and all organic solvent was concentrated in vacuo to dryness. The residue was dissolved in CH2Cl2, washed once with water and brine, dried over anhydrous Na2SO4, filtered, and concentrated in vacuo, giving the title compound as a waxy white solid that solidified upon drying. The material was used without further purification. 1H NMR (400 MHz, CDCl3): δ=1.32 (s, 12H), 1.94-2.07 (m, 2H), 2.16 (dd, J=12.3, 2.4 Hz, 2H), 2.85 (s, 6H), 2.87-2.95 (m, 2H), 3.78 (d, J=13.4 Hz, 2H), 4.24-4.34 (m, 1H), 7.76 (s, 1H), 7.80 (s, 1H). MS (AP+): m/z 349.13 (100) [MH+]. HPLC: tR=2.91 min (ZQ3, polar—5 min).

후처리

  1. concentrationall organic solvent was concentrated in vacuo to dryness
  2. dissolutionThe residue was dissolved in CH2Cl2
  3. washwashed once with water and brine
  4. dry with materialdried over anhydrous Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-5a5308d42b0741d7a70713137f3df47a
출처 데이터셋
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08592448B2

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