Water → 3-(1-(4-Benzyloxy-benzyl)-1H-pyrazol-4-yl)-pyridin-2-ylamine

HRID 640144

반응식

HRID 640144 반응식
[NH2:1][C:2]1[C:7](Br)=[CH:6][CH:5]=[CH:4][N:3]=1.[CH2:9]([O:16][C:17]1[CH:41]=[CH:40][C:20]([CH2:21][N:22]2[CH:26]=[C:25]([Sn](CCCC)(CCCC)CCCC)[CH:24]=[N:23]2)=[CH:19][CH:18]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.O.C(OCC)(=O)C>O1CCCC1.[Cu]I.C1(C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)[Pd][P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH2:9]([O:16][C:17]1[CH:41]=[CH:40][C:20]([CH2:21][N:22]2[CH:26]=[C:25]([C:7]3[C:2]([NH2:1])=[N:3][CH:4]=[CH:5][CH:6]=3)[CH:24]=[N:23]2)=[CH:19][CH:18]=1)[C:10]1[CH:11]=[CH:12][CH:13]=[CH:14][CH:15]=1

참가 물질

8

반응물 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 8177002-Amino-3-bromopyridineHCID 592551261-(4-benzyloxy-benzyl)-4-tributylstannanyl-1H-pyrazole

생성물 1

HCID 592551283-(1-(4-Benzyloxy-benzyl)-1H-pyrazol-4-yl)-pyridin-2-ylamine수율 2%

시약·촉매·용매 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매HCID 178419050HCID 178419050, 화합물촉매HCID 8028Tetrahydrofuran용매

반응 조건

온도
70 °C

실험 절차

To a solution of 2-amino-3-bromopyridine (44.1 mg, 0.26 mmol) in anhydrous tetrahydrofuran (7 mL) were added 1-(4-benzyloxy-benzyl)-4-tributylstannanyl-1H-pyrazole (141 mg, 0.26 mmol) described in Manufacturing Example 31-1-2, copper (I) iodide (19.4 mg, 0.10 mmol) and bis(triphenylphosphine)palladium (II) (35.8 mg, 0.05 mmol) under nitrogen atmosphere, which was stirred for 4 hours at 70° C. Water and ethyl acetate were added to the reaction mixture at room temperature, which was then filtered through a Celite pad, and the filtrate was partitioned into water and ethyl acetate. The organic layer was washed with water and saturated aqueous sodium chloride, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under a reduced pressure. The residue was purified by NH silica gel column chromatography (ethyl acetate:heptane=2:1, then ethyl acetate) to obtain the title compound (1.8 mg, 2%).

후처리

  1. filtrationwhich was then filtered through a Celite pad
  2. customthe filtrate was partitioned into water and ethyl acetate
  3. washThe organic layer was washed with water and saturated aqueous sodium chloride
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated under a reduced pressure
  6. customThe residue was purified by NH silica gel column chromatography (ethyl acetate

출처 및 근거

ORD 기록
ord-6391f229af8b4e0dbbca981b25d3fe51
출처 데이터셋
uspto-grants-2010_04
특허 번호
US07691882B2

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