1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 5-Amino-1-(5-cyclopropylcarbamoyl-2-methyl-phenyl)-3-methyl-1h-pyrazole-4-carboxylic acid ethyl ester

HRID 1959520

반응식

HRID 1959520 반응식
[CH2:1]([O:3][C:4]([C:6]1[C:7]([CH3:22])=[N:8][N:9]([C:12]2[CH:17]=[C:16]([C:18]([OH:20])=O)[CH:15]=[CH:14][C:13]=2[CH3:21])[C:10]=1[NH2:11])=[O:5])[CH3:2].CCN=C=N[CH2:28][CH2:29][CH2:30][N:31](C)C.C1C=CC2N(O)N=NC=2C=1.C(N(C(C)C)CC)(C)C.C1(N)CC1>CN(C=O)C.CCOC(C)=O.O>[CH2:1]([O:3][C:4]([C:6]1[C:7]([CH3:22])=[N:8][N:9]([C:12]2[CH:17]=[C:16]([C:18](=[O:20])[NH:31][CH:30]3[CH2:28][CH2:29]3)[CH:15]=[CH:14][C:13]=2[CH3:21])[C:10]=1[NH2:11])=[O:5])[CH3:2]

참가 물질

9

반응물 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 69828CyclopropylamineHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 670242365-Amino-1-(5-carboxy-2-methyl-phenyl)-3-methyl-1H-pyrazole-4-carboxylic acid ethyl ester

생성물 1

HCID 112215565-Amino-1-(5-cyclopropylcarbamoyl-2-methyl-phenyl)-3-methyl-1h-pyrazole-4-carboxylic acid ethyl ester수율 17.3%

시약·촉매·용매 3

HCID 962Water용매HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

실험 절차

To a solution of 5-amino-1-(5-carboxy-2-methyl-phenyl)-3-methyl-1H-pyrazole-4-carboxylic acid ethyl ester (150 mg, 0.49 mmol, 1.0 eq), EDCI (190 mg, 0.98 mmol, 2.0 eq), HOBt (134 mg, 0.98 mmol, 2.0 eq), and diisopropylethyl amine (362 μL, 0.98 mmol, 2.0 eq) in DMF (5 mL) which had been stirred at RT for 15 min was added cyclopropylamine (68 μL, 0.98 mmol, 2.0 eq). After stirring overnight, the solution was diluted with EtOAc and water and the organic layer was washed with water (2×) and brine, dried (Na2SO4) and concentrated. The crude residue was purified by flash chromatography on silica gel (gradient elution, 3/2 EtOAc/hexanes then 100% EtOAc) to provide the product as a white solid (29 mg, 17%). HPLC (4 minute 10-95 gradient) tR1.97 min; MS m/z 343 [M+H]+; 1H NMR (CD3OD), δ 7.87 (d, J=7.1 Hz, 1H), 7.76 (s, 1H), 7.50 (d, J=8.0 Hz, 1H), 4.29 (q, J=7.0 Hz, 2H), 2.84 (m, 1H), 2.34 (s, 3H), 2.18 (s, 3H), 1.36 (t, J=7.0 Hz, 3H), 0.79 (d, J=5.5 Hz, 2H), 0.62 (s, 2H) ppm; 13C NMR (CD3OD), δ 168.1, 164.4, 151.3, 149.8, 140.1, 135.2, 132.6, 130.7, 127.9, 126.3, 92.0, 58.6, 22.1, 15.7, 12.9, 12.6, 4.6 ppm.

후처리

  1. washthe organic layer was washed with water (2×) and brine
  2. dry with materialdried (Na2SO4)
  3. concentrationconcentrated
  4. customThe crude residue was purified by flash chromatography on silica gel (
  5. washgradient elution, 3/2 EtOAc/hexanes

출처 및 근거

ORD 기록
ord-6b5a71d9c47740be8108d9e9301312d2
출처 데이터셋
uspto-grants-2013_04
특허 번호
US08410160B2

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