Potassium Carbonate → N-(5-(4-cyclopropyl-4H-1,2,4-triazol-3-yl)thiophen-3-yl)-3,4'-bipyridine-2'-carboxamide

HRID 2091624ノート

反応式

HRID 2091624 の反応式
Br[C:2]1[CH:7]=[CH:6][N:5]=[C:4]([C:8]([NH:10][C:11]2[CH:15]=[C:14]([C:16]3[N:20]([CH:21]4[CH2:23][CH2:22]4)[CH:19]=[N:18][N:17]=3)[S:13][CH:12]=2)=[O:9])[CH:3]=1.[N:24]1[CH:29]=[CH:28][CH:27]=[C:26](B(O)O)[CH:25]=1.C(=O)([O-])[O-].[K+].[K+]>C1(C)C=CC=CC=1>[CH:21]1([N:20]2[CH:19]=[N:18][N:17]=[C:16]2[C:14]2[S:13][CH:12]=[C:11]([NH:10][C:8]([C:4]3[CH:3]=[C:2]([C:26]4[CH:25]=[N:24][CH:29]=[CH:28][CH:27]=4)[CH:7]=[CH:6][N:5]=3)=[O:9])[CH:15]=2)[CH2:23][CH2:22]1

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 27343783-Pyridinylboronic acidHCID 580356474-bromo-N-(5-(4-cyclopropyl-4H-1,2,4-triazol-3-yl)thiophen-3-yl)picolinamide

生成物 1

HCID 56597124N-(5-(4-cyclopropyl-4H-1,2,4-triazol-3-yl)thiophen-3-yl)-3,4'-bipyridine-2'-carboxamide収率 20.2%

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒

反応条件

温度
90 °C

実験手順

A suspension of 4-bromo-N-(5-(4-cyclopropyl-4H-1,2,4-triazol-3-yl)thiophen-3-yl)picolinamide (55 mg, 0.14 mmol), 3-pyridine boronic acid (17 mg, 0.14 mmol), dppf(Pd)Cl2 (5.2 mg, 0.0071 mmol), potassium carbonate (49 mg, 0.35 mmol) in degassed toluene (0.70 mL), degassed water (0.35 mL) and degassed ethanol (0.35 mL) was heated at 90° C. for 3 hours. The aqueous layer was separated, the organic layer was concentrated under reduced pressure, and the residue was purified by reverse-phase HPLC to give N-(5-(4-cyclopropyl-4H-1,2,4-triazol-3-yl)thiophen-3-yl)-3,4′-bipyridine-2′-carboxamide as a white powder (11 mg, 20% yield). N-(5-(4-cyclopropyl-4H-1,2,4-triazol-3-yl)thiophen-3-yl)-3,4′-bipyridine-2′-carboxamide; C20H16N6OS. 389.2 (M+1). 1H NMR (DMSO) δ 11.45 (s, 1H), 9.11 (d, J=2 Hz, 1H), 8.85 (d, J=5 Hz, 1H), 8.70-8.74 (m, 1H), 8.60 (s, 1H), 8.49 (s, 1H), 8.31-8.36 (m, 2H), 8.10 (dd, J=2, 5 Hz, 1H), 8.06 (s, 1H), 7.60 (dd, J=5, 8 Hz, 1H), 3.56-3.59 (m, 1H), 1.11-1.27 (m, 4H).

後処理

  1. customdegassed water (0.35 mL)
  2. customdegassed ethanol (0.35 mL)
  3. customThe aqueous layer was separated
  4. concentrationthe organic layer was concentrated under reduced pressure
  5. customthe residue was purified by reverse-phase HPLC

出典と根拠

ORDレコード
ord-08176c435127479c9f9ed36b090591ef
出典データセット
uspto-grants-2013_05
特許番号
US08440665B2

反応ノート

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