Ethyl Acetate → 2-[2-(4-Bromo-2-chloro-phenoxy)-acetylamino]-isonicotinic acid methyl ester

HRID 1945433

반응식

HRID 1945433 반응식
[Br:1][C:2]1[CH:12]=[CH:11][C:5]([O:6][CH2:7][C:8]([OH:10])=O)=[C:4]([Cl:13])[CH:3]=1.[CH3:14][O:15][C:16](=[O:24])[C:17]1[CH:22]=[CH:21][N:20]=[C:19]([NH2:23])[CH:18]=1.C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.C(OCC)(=O)C>CN(C1C=CN=CC=1)C.CN(C=O)C>[CH3:14][O:15][C:16](=[O:24])[C:17]1[CH:22]=[CH:21][N:20]=[C:19]([NH:23][C:8](=[O:10])[CH2:7][O:6][C:5]2[CH:11]=[CH:12][C:2]([Br:1])=[CH:3][C:4]=2[Cl:13])[CH:18]=1

참가 물질

7

반응물 4

HCID 8857Ethyl AcetateHCID 236984Methyl 2-aminopyridine-4-carboxylateHCID 6931572-(4-Bromo-2-chlorophenoxy)acetic acidHCID 2724699PyBOP

생성물 1

HCID 248120962-[2-(4-Bromo-2-chloro-phenoxy)-acetylamino]-isonicotinic acid methyl ester수율 56%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6228Dimethylformamide용매

실험 절차

To solution of (4-bromo-2-chloro-phenoxyacetic acid (100 mg, 0.378 mmol), 2-amino isonicotinic acid methyl ester (86.42 mg, 0.568 mmol) and DMAP (69.43 mg, 0.568 mmol) in DMF 2 mL was added PyBOP (295 mg, 0.568 mmol) at room temperature. Reaction mixture was stirred at room temperature. Resulting mixture poured onto ice cold water, was diluted by ethyl acetate. The organic phase was separated, sequentially washed with aqueous sodium bicarbonate, brine and water, dried over anhydrous MgSO4, and concentrated. The residue was purified by flash silica gel column chromatography (EtoAC:Hexane=1:9˜4:6) to give 2-[2-(4-bromo-2-chloro-phenoxy)-acetylamino]-isonicotinic acid methyl ester as a colorless solid (0.084 g, 56% yield).

후처리

  1. customReaction mixture
  2. customResulting mixture
  3. additionpoured onto ice cold water
  4. customThe organic phase was separated
  5. washsequentially washed with aqueous sodium bicarbonate, brine and water
  6. dry with materialdried over anhydrous MgSO4
  7. concentrationconcentrated
  8. customThe residue was purified by flash silica gel column chromatography (EtoAC:Hexane=1:9˜4:6)

출처 및 근거

ORD 기록
ord-f6c65c6971ce41d794aeffbb4f7fb94f
출처 데이터셋
uspto-grants-2013_03
특허 번호
US08394799B2

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