1-methyl-2-(tributylstannyl)-1H-pyrrole → 1-Ethyl-3-[7-(1-methyl-1H-pyrrol-2-yl)-5-pyridin-3-yl-benzothiazol-2-yl]-urea

HRID 1941934

反応式

HRID 1941934 の反応式
[CH2:1]([NH:3][C:4]([NH:6][C:7]1[S:8][C:9]2[C:15](I)=[CH:14][C:13]([C:17]3[CH:18]=[N:19][CH:20]=[CH:21][CH:22]=3)=[CH:12][C:10]=2[N:11]=1)=[O:5])[CH3:2].[CH3:23][N:24]1[CH:28]=[CH:27][CH:26]=[C:25]1[Sn](CCCC)(CCCC)CCCC>CN(C=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:1]([NH:3][C:4]([NH:6][C:7]1[S:8][C:9]2[C:15]([C:25]3[N:24]([CH3:23])[CH:28]=[CH:27][CH:26]=3)=[CH:14][C:13]([C:17]3[CH:18]=[N:19][CH:20]=[CH:21][CH:22]=3)=[CH:12][C:10]=2[N:11]=1)=[O:5])[CH3:2]

参加物

5

反応物 2

HCID 27693971-methyl-2-(tributylstannyl)-1H-pyrroleHCID 24864395HCID 24864395、化合物

生成物 1

HCID 248643971-Ethyl-3-[7-(1-methyl-1H-pyrrol-2-yl)-5-pyridin-3-yl-benzothiazol-2-yl]-urea

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 6228Dimethylformamide溶媒

反応条件

温度
120 °C

実験手順

To a solution of 1-ethyl-3-(7-iodo-5-pyridin-3-yl-benzothiazol-2-yl)-urea (0.10 g, 0.24 mmol) in DMF (2.0 mL) was added N-methyl-2-tributylstannyl-1H-pyrrole (0.18 g, 0.47 mmol) under nitrogen atmosphere at room temperature. The reaction mixture was degassed for half an hour followed by the addition of tetrakis(triphenylphosphine)palladium(0) (0.027 g, 0.024 mmol). The reaction mixture was again degassed for half an hour and then heated at 120° C. for 20 h under nitrogen atmosphere. After the completion of the reaction (TLC monitoring), DMF was distilled off, added water and extracted with ethyl acetate (×3). The combined organic layer was dried over anhydrous Na2SO4, and evaporated to dryness under reduced pressure. The crude residue was purified by prep-HPLC to provide the title compound as off white solid (0.005 g, 6.0%).

後処理

  1. customThe reaction mixture was degassed for half an hour
  2. customThe reaction mixture was again degassed for half an hour
  3. customAfter the completion of the reaction (TLC monitoring), DMF
  4. distillationwas distilled off
  5. additionadded water
  6. extractionextracted with ethyl acetate (×3)
  7. dry with materialThe combined organic layer was 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-5bcd8529a4384f65b42feb6502155fd3
出典データセット
uspto-grants-2013_03
特許番号
US08389516B2

関連ノート

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