1-(7-Bromo-5-pyridin-3-yl-benzothiazol-2-yl)-3-ethyl-urea → 1-[7-(6-Dimethylamino-pyridin-2-yl)-5-pyridin-3-yl-benzothiazol-2-yl]-3-ethyl-urea

HRID 447043ノート

反応式

HRID 447043 の反応式
Br[C:2]1[C:10]2[S:9][C:8]([NH:11][C:12]([NH:14][CH2:15][CH3:16])=[O:13])=[N:7][C:6]=2[CH:5]=[C:4]([C:17]2[CH:18]=[N:19][CH:20]=[CH:21][CH:22]=2)[CH:3]=1.[CH3:23][N:24]([CH3:44])[C:25]1[CH:30]=[CH:29][CH:28]=[C:27]([Sn](CCCC)(CCCC)CCCC)[N:26]=1>CN(C=O)C.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:23][N:24]([CH3:44])[C:25]1[N:26]=[C:27]([C:2]2[C:10]3[S:9][C:8]([NH:11][C:12]([NH:14][CH2:15][CH3:16])=[O:13])=[N:7][C:6]=3[CH:5]=[C:4]([C:17]3[CH:18]=[N:19][CH:20]=[CH:21][CH:22]=3)[CH:3]=2)[CH:28]=[CH:29][CH:30]=1

参加物

5

反応物 2

HCID 248642171-(7-Bromo-5-pyridin-3-yl-benzothiazol-2-yl)-3-ethyl-ureaHCID 57813708N,N-Dimethyl-6-(tributylstannyl)pyridin-2-amine

生成物 1

HCID 578136001-[7-(6-Dimethylamino-pyridin-2-yl)-5-pyridin-3-yl-benzothiazol-2-yl]-3-ethyl-urea収率 5%

試薬・触媒・溶媒 2

HCID 178418476HCID 178418476、化合物触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
100 °C

実験手順

To a solution of 1-(7-bromo-5-pyridin-3-yl-benzothiazol-2-yl)-3-ethyl-urea (0.125 g, 0.33 mmol) in DMF (5 mL) was added dimethyl-(6-tributylstannanyl-pyridin-2-yl)-amine (0.14 g, 0.33 mmol) under nitrogen atmosphere at room temperature. The reaction mixture was then degassed for half an hour followed by the addition of bis(triphenylphosphine)palladium(II) dichloride (0.023 g, 0.033 mmol). The reaction mixture was then again degassed for half an hour and heated at 100° C. for 15 h under nitrogen atmosphere. After the completion of the reaction (TLC monitoring), DMF was distilled off; water was added to the reaction mixture and extracted with ethyl acetate. The combined organic layers were dried over anhydrous Na2SO4, and evaporated to dryness under reduced pressure. The crude residue was purified by prep HPLC to get the title compound (0.006 g, 5.0%) as off-white solid.

後処理

  1. customThe reaction mixture was then degassed for half an hour
  2. customThe reaction mixture was then again degassed for half an hour
  3. customAfter the completion of the reaction (TLC monitoring), DMF
  4. distillationwas distilled off
  5. additionwater was added to the reaction mixture
  6. extractionextracted with ethyl acetate
  7. dry with materialThe combined organic layers were dried over anhydrous Na2SO4
  8. customevaporated to dryness under reduced pressure
  9. customThe crude residue was purified by prep HPLC

出典と根拠

ORDレコード
ord-0d3b0de339964f7697c377db49f37a6c
出典データセット
uspto-grants-2013_07
特許番号
US08481544B2

反応ノート

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