Ethyl Acetate → 1-methyl-5-(2-morpholin-4-yl-[1,2,4]triazolo[1,5-a]pyridin-6-ylcarbamoyl)-1H-pyrazole-4-carboxylic acid ethyl ester

HRID 1844452

反応式

HRID 1844452 の反応式
[N:1]1([C:7]2[N:16]=[C:10]3[CH:11]=[CH:12][C:13]([NH2:15])=[CH:14][N:9]3[N:8]=2)[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1.[CH2:17]([O:19][C:20]([C:22]1[CH:23]=[N:24][N:25]([CH3:30])[C:26]=1[C:27](O)=[O:28])=[O:21])[CH3:18].CCCP(=O)=O.C(OCC)(=O)C.C(N(CC)C(C)C)(C)C>O1CCCC1>[CH2:17]([O:19][C:20]([C:22]1[CH:23]=[N:24][N:25]([CH3:30])[C:26]=1[C:27](=[O:28])[NH:15][C:13]1[CH:12]=[CH:11][C:10]2[N:9]([N:8]=[C:7]([N:1]3[CH2:6][CH2:5][O:4][CH2:3][CH2:2]3)[N:16]=2)[CH:14]=1)=[O:21])[CH3:18]

参加物

7

反応物 5

HCID 8857Ethyl AcetateHCID 81531DiisopropylethylamineHCID 16167369Propylphosphoric anhydrideHCID 252475674-(Ethoxycarbonyl)-1-methyl-1H-pyrazole-5-carboxylic acidHCID 894644042-Morpholin-4-yl-[1,2,4]triazolo[1,5-a]pyridin-6-amine

生成物 1

HCID 894647211-methyl-5-(2-morpholin-4-yl-[1,2,4]triazolo[1,5-a]pyridin-6-ylcarbamoyl)-1H-pyrazole-4-carboxylic acid ethyl ester収率 71%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

A mixture of 2-morpholin-4-yl-[1,2,4]triazolo[1,5-a]pyridin-6-amine (225 mg, 1.03 mmol), 4-(ethoxycarbonyl)-1-methyl-1H-pyrazole-5-carboxylic acid (224 mg, 1.13 mmol), propylphosphonic anhydride in ethyl acetate 50% (1.63 g, 1.51 ml, 2.57 mmol) and N,N-diisopropylethylamine (398 mg, 524 μl, 3.08 mmol) in tetrahydrofuran (7 ml) was refluxed for 18 hours. The solvent was evaporated, the residue was triturated with saturated aqueous sodium hydrogen carbonate. The precipitated solid was filtered off, washed with water and dried in vacuo, affording 1-methyl-5-(2-morpholin-4-yl-[1,2,4]triazolo[1,5-a]pyridin-6-ylcarbamoyl)-1H-pyrazole-4-carboxylic acid ethyl ester (292 mg, 71%) as light brown solid. Mp.: 233.5° C. MS: m/z=400.1 (M+H+).

後処理

  1. temperaturewas refluxed for 18 hours
  2. customThe solvent was evaporated
  3. customthe residue was triturated with saturated aqueous sodium hydrogen carbonate
  4. filtrationThe precipitated solid was filtered off
  5. washwashed with water
  6. customdried in vacuo

出典と根拠

ORDレコード
ord-f61bf0aecbf54b858ce6c9cdfbeebee1
出典データセット
uspto-grants-2015_02
特許番号
US08946427B2

関連ノート

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