2-Iodo-1-benzofuran → 2-[(3-Benzofuran-2-yl-prop-2-ynyl)-(2,4-dichloro-benzoyl)-amino]-3-phenyl-propionic acid methyl ester

HRID 2179935ノート

反応式

HRID 2179935 の反応式
[CH3:1][O:2][C:3](=[O:26])[CH:4]([N:12]([C:16](=[O:25])[C:17]1[CH:22]=[CH:21][C:20]([Cl:23])=[CH:19][C:18]=1[Cl:24])[CH2:13][C:14]#[CH:15])[CH2:5][C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1.I[C:28]1[O:29][C:30]2[CH:36]=[CH:35][CH:34]=[CH:33][C:31]=2[CH:32]=1>CN(C=O)C.C(N(CC)CC)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>[CH3:1][O:2][C:3](=[O:26])[CH:4]([N:12]([CH2:13][C:14]#[C:15][C:28]1[O:29][C:30]2[CH:36]=[CH:35][CH:34]=[CH:33][C:31]=2[CH:32]=1)[C:16](=[O:25])[C:17]1[CH:22]=[CH:21][C:20]([Cl:23])=[CH:19][C:18]=1[Cl:24])[CH2:5][C:6]1[CH:7]=[CH:8][CH:9]=[CH:10][CH:11]=1

参加物

6

反応物 2

HCID 138317942-Iodo-1-benzofuranHCID 207793042-[(2,4-Dichloro-benzoyl)-prop-2-ynyl-amino]-3-phenyl-propionic acid methyl ester

生成物 1

HCID 697397282-[(3-Benzofuran-2-yl-prop-2-ynyl)-(2,4-dichloro-benzoyl)-amino]-3-phenyl-propionic acid methyl ester

試薬・触媒・溶媒 3

HCID 178418397HCID 178418397、化合物触媒HCID 6228Dimethylformamide溶媒HCID 8471Triethylamine溶媒

実験手順

To a solution of 2-[(2,4-Dichloro-benzoyl)-prop-2-ynyl-amino]-3-phenyl-propionic acid methyl ester (prepared according to example 9) (50 mg, 0.128 mmol) and 2-iodobenzofuran (41 mg, 0.166 mmol) in DMF (2 mL), triethylamine (2 mL) and tetrakis(triphenylphosphine)palladium(0) (15 mg, 0.01 mmol) were added and the reaction mixture was stirred under reflux conditions for 4 h under a N2 atmosphere. DMF and triethylamine were removed under reduced pressure and the residue was partitioned between water and ethyl acetate. The organic layer was separated, dried (Na2SO4), concentrated and the residue was purified by column chromatography using ethyl acetate and hexane (1:4) as eluent to obtain 2-[(3-Benzofuran-2-yl-prop-2-ynyl)-(2,4-dichloro-benzoyl)-amino]-3-phenyl-propionic acid methyl ester as a thick syrup, 50 mg (76%). The compound contains two other rotamers. 1H-NMR (CDCl3, 300 MHz): δ7.58-7.09 (m, 12H), 6.98 (s, minor rotamer), 6.97 (d, minor rotamer), 6.85 (dd, minor rotamer), 6.83 (s, 1H), 5.82 (d, minor rotamer), 5.25 (bs, minor rotamer), 5.10 (bs, minor rotamer), 4.88-4.52 (m, minor rotamer), 4.35-3.21 (m, 5H), 3.78 (s, 3H), 3.76, 3.65 (2s, minor rotamer).

後処理

  1. customDMF and triethylamine were removed under reduced pressure
  2. customthe residue was partitioned between water and ethyl acetate
  3. customThe organic layer was separated
  4. dry with materialdried (Na2SO4)
  5. concentrationconcentrated
  6. customthe residue was purified by column chromatography

出典と根拠

ORDレコード
ord-f79aac14abe5477085c27cea64cf2628
出典データセット
uspto-grants-2005_05
特許番号
US06887877B2

反応ノート

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