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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
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HRID 32823 반응식
[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
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참가 물질

5

반응물 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

생성물 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

시약·촉매·용매 1

HCID 8028
Tetrahydrofuran
용매
2회

실험 절차

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%).

후처리

  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

출처 및 근거

ORD 기록
ord-812e66f511de4271aab6d20fc643c8cf
출처 데이터셋
uspto-grants-2008_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07427635B2

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