1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 4-(2-fluoro-4-iodophenylamino)-1,5-dimethyl-6-oxo-N-(2-(vinyloxy)ethoxy)-1,6-dihydropyridazine-3-carboxamide

HRID 15972

반응식

HRID 15972 반응식
[F:1][C:2]1[CH:7]=[C:6]([I:8])[CH:5]=[CH:4][C:3]=1[NH:9][C:10]1[C:11]([C:19]([OH:21])=O)=[N:12][N:13]([CH3:18])[C:14](=[O:17])[C:15]=1[CH3:16].C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.[CH:43]([O:45][CH2:46][CH2:47][O:48][NH2:49])=[CH2:44]>CN(C=O)C.CCOC(C)=O>[F:1][C:2]1[CH:7]=[C:6]([I:8])[CH:5]=[CH:4][C:3]=1[NH:9][C:10]1[C:11]([C:19]([NH:49][O:48][CH2:47][CH2:46][O:45][CH:43]=[CH2:44])=[O:21])=[N:12][N:13]([CH3:18])[C:14](=[O:17])[C:15]=1[CH3:16]

참가 물질

7

반응물 4

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 21867017O-(2-(Vinyloxy)ethyl)hydroxylamineHCID 666740444-(2-Fluoro-4-iodophenylamino)-1,5-dimethyl-6-oxo-1,6-dihydropyridazine-3-carboxylic acid

생성물 1

HCID 866016164-(2-fluoro-4-iodophenylamino)-1,5-dimethyl-6-oxo-N-(2-(vinyloxy)ethoxy)-1,6-dihydropyridazine-3-carboxamide

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

To a suspension of 4-(2-fluoro-4-iodophenylamino)-1,5-dimethyl-6-oxo-1,6-dihydropyridazine-3-carboxylic acid (41 mg, 0.10 mmol) and HOBt (28 mg, 0.21 mmol) in DMF (1.5 mL) was added EDCI (40 mg, 0.21 mmol) at room temperature. The resulting mixture was stirred for 1.5 hours. O-(2-Vinyloxy-ethyl)-hydroxylamine (21 mg, 0.20 mmol) and TEA (0.030 mL, 0.22 mmol) was added to the activated ester at room temperature. After stirring for 1.5 hours, the reaction mixture was diluted with EtOAc and washed with saturated aqueous NH4Cl, brine, saturated aqueous NaHCO3 (2×), and brine. The organic layer was separated, dried over MgSO4, filtered, and concentrated under reduced pressure to give 4-(2-fluoro-4-iodophenylamino)-1,5-dimethyl-6-oxo-N-(2-(vinyloxy)ethoxy)-1,6-dihydropyridazine-3-carboxamide that was used directly without further purification. The title compound was prepared by the procedure previously described in Example 1 (step J) using the crude 4-(2-fluoro-4-iodophenylamino)-1,5-dimethyl-6-oxo-N-(2-(vinyloxy)ethoxy)-1,6-dihydropyridazine-3-carboxamide (40% yield over two steps). MS APCI (−) m/z 461 (M−1) detected; 1H NMR (400 MHz, CD3OD) δ 7.52 (dd, 1H), 7.44 (d, 1H), 6.63 (t, 1H), 3.98 (t, 2H), 3.80 (s, 3H), 3.74 (t, 2H), 1.78 (s, 3H).

후처리

  1. stirringAfter stirring for 1.5 hours
  2. washwashed with saturated aqueous NH4Cl, brine, saturated aqueous NaHCO3 (2×), and brine
  3. customThe organic layer was separated
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-636a7089f568422a9a2fbccc16580145
출처 데이터셋
uspto-grants-2010_06
특허 번호
US07732616B2

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