Diphosgene → (2S,3S)-2-{4-[4-(2-morpholin-4-yl-ethoxy)-phenyl]-2,5-dioxo-imidazolidin-1-yl}-3-phenyl-N-(4-propionyl-thiazol-2-yl)-butyramide

HRID 32823

反応式

HRID 32823 の反応式
[NH2:1][C@H:2]([C:27]1[CH:32]=[CH:31][C:30]([O:33][CH2:34][CH2:35][N:36]2[CH2:41][CH2:40][O:39][CH2:38][CH2:37]2)=[CH:29][CH:28]=1)[C:3]([NH:5][C@@H:6]([C@H:19]([C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)[CH3:20])[C:7]([NH:9][C:10]1[S:11][CH:12]=[C:13]([C:15](=[O:18])[CH2:16][CH3:17])[N:14]=1)=[O:8])=[O:4].C(N(C(C)C)CC)(C)C.[O:51]=[C:52](Cl)OC(Cl)(Cl)Cl>O1CCCC1>[N:36]1([CH2:35][CH2:34][O:33][C:30]2[CH:31]=[CH:32][C:27]([CH:2]3[C:3](=[O:4])[N:5]([C@@H:6]([C@H:19]([C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=4)[CH3:20])[C:7]([NH:9][C:10]4[S:11][CH:12]=[C:13]([C:15](=[O:18])[CH2:16][CH3:17])[N:14]=4)=[O:8])[C:52](=[O:51])[NH:1]3)=[CH:28][CH:29]=2)[CH2:41][CH2:40][O:39][CH2:38][CH2:37]1

参加物

5

反応物 3

HCID 10426DiphosgeneHCID 81531DiisopropylethylamineHCID 86603387(2S,3S)-2-{(R)-2-amino-2-[4-(2-morpholin-4-yl-ethoxy)-phenyl]-acetylamino}-3-phenyl-N-(4-propionyl-thiazol-2-yl)-butyramide

生成物 1

HCID 11642924(2S,3S)-2-{4-[4-(2-morpholin-4-yl-ethoxy)-phenyl]-2,5-dioxo-imidazolidin-1-yl}-3-phenyl-N-(4-propionyl-thiazol-2-yl)-butyramide

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

実験手順

Crude (2S,3S)-2-{(R)-2-amino-2-[4-(2-morpholin-4-yl-ethoxy)-phenyl]-acetylamino}-3-phenyl-N-(4-propionyl-thiazol-2-yl)-butyramide (≈0.19 mmol) was dissolved in tetrahydrofuran (10 mL) that contained diisopropylethylamine (160 μL, 122 mg, 0.94 mmol) and was transferred via cannula to a solution of diphosgene (16 μL, 26 mg, 0.13 mmol) in tetrahydrofuran (15 mL) at 0° C. The reaction mixture was stirred for 20 minutes and then partitioned between ethyl acetate and water. The organic layer was separated and dried over sodium sulfate, filtered and concentrated in vacuo. The residue was purified by chromatography over silica gel gradient eluted with 0-100% ethyl acetate in hexanes and the isolated material further purified by preparative thin layer chromatography using silica gel eluted with ethyl acetate. Precipitation of the isolated product from dichloromethane with an excess of hexanes gave (2S,3S)-2-{4-[4-(2-morpholin-4-yl-ethoxy)-phenyl]-2,5-dioxo-imidazolidin-1-yl}-3-phenyl-N-(4-propionyl-thiazol-2-yl)-butyramide as an off white solid (32 mg, 29%).

後処理

  1. custompartitioned between ethyl acetate and water
  2. customThe organic layer was separated
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by chromatography over silica gel gradient
  7. washeluted with 0-100% ethyl acetate in hexanes
  8. customthe isolated material further purified by preparative thin layer chromatography
  9. washeluted with ethyl acetate
  10. customPrecipitation of the isolated product from dichloromethane with an excess of hexanes

出典と根拠

ORDレコード
ord-812e66f511de4271aab6d20fc643c8cf
出典データセット
uspto-grants-2008_09
特許番号
US07427635B2

関連ノート

読み込み中…