Potassium Carbonate → tert-Butyl N-[(1S,2S)-2-{[3-methyl-5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl]carbamate

HRID 1750499ノート

反応式

HRID 1750499 の反応式
Br[C:2]1[C:3]([NH:12][C@H:13]2[CH2:17][CH2:16][CH2:15][C@@H:14]2[NH:18][C:19](=[O:25])[O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[N:4][CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[N:7]=1.[CH3:26]B(O)O.C(=O)([O-])[O-].[K+].[K+]>O1CCOCC1.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>[CH3:26][C:2]1[C:3]([NH:12][C@H:13]2[CH2:17][CH2:16][CH2:15][C@@H:14]2[NH:18][C:19](=[O:25])[O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[N:4][CH:5]=[C:6]([C:8]([F:11])([F:10])[F:9])[N:7]=1

参加物

6

反応物 3

HCID 11430Potassium CarbonateHCID 139377Methylboronic AcidHCID 118308064tert-butyl ((1S,2S)-2-((3-bromo-5-(trifluoromethyl)pyrazin-2-yl)amino)cyclopentyl)carbamate

生成物 1

HCID 118308261tert-Butyl N-[(1S,2S)-2-{[3-methyl-5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl]carbamate

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 312751,4-Dioxane溶媒

実験手順

A mixture of tert-butyl N-[(1S,2S)-2-{[3-bromo-5-(trifluoromethyl)pyrazin-2-yl]amino}cyclopentyl]carbamate (800 mg, 1.88 mmol), methylboronic acid (CAS number 13061-96-6; 338 mg, 5.64 mmol), tetrakis(triphenylphosphine)palladium (217 mg, 0.19 mmol) and, 2 M potassium carbonate (aq, 3.8 ml, 7.53 mmol) in 1,4-dioxane (6.3 ml) was sealed, evacuated and purged with nitrogen and then subjected to microwave irradiation at 120° C. for 2 hours. The reaction mixture was then diluted with ethyl acetate (40 ml) and water (10 ml). The organics were washed with water and brine, dried over sodium sulfate and concentrated in vacuo. The residue was then purified by column chromatography (silica, 0-50% ethyl acetate/petrol) to afford the title compound.

後処理

  1. customwas sealed
  2. customevacuated
  3. custompurged with nitrogen
  4. customirradiation at 120° C. for 2 hours
  5. additionThe reaction mixture was then diluted with ethyl acetate (40 ml) and water (10 ml)
  6. washThe organics were washed with water and brine
  7. dry with materialdried over sodium sulfate
  8. concentrationconcentrated in vacuo
  9. customThe residue was then purified by column chromatography (silica, 0-50% ethyl acetate/petrol)

出典と根拠

ORDレコード
ord-b179aeec026e434a8559fa63346440a1
出典データセット
uspto-grants-2015_10
特許番号
US09156829B2

反応ノート

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