Sodium Carbonate → 2-[2-tert-Butoxycarbonylamino-3-(4-phenyl-cyclohexa-1,5-dienyloxy)-propionylamino]-3-methylbutyric acid methyl ester

HRID 910423ノート

反応式

HRID 910423 の反応式
C([O-])([O-])=O.[Na+].[Na+].[CH3:7][O:8][C:9](=[O:35])[CH:10]([NH:14][C:15](=[O:34])[CH:16]([NH:26][C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:17][O:18][C:19]1[CH:24]=[CH:23][C:22](Br)=[CH:21][CH:20]=1)[CH:11]([CH3:13])[CH3:12].[C:36]1(B(O)O)[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1>C1(C)C=CC=CC=1.CCOC(C)=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:7][O:8][C:9](=[O:35])[CH:10]([NH:14][C:15](=[O:34])[CH:16]([NH:26][C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:17][O:18][C:19]1[CH:24]=[CH:23][CH:22]([C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)[CH2:21][CH:20]=1)[CH:11]([CH3:13])[CH3:12]

参加物

7

反応物 3

HCID 10340Sodium CarbonateHCID 66827Phenylboronic AcidHCID 666609032-[3-(4-Bromophenoxy)-2-tert-butoxycarbonylamino-propionylamino]-3-methyl-butyric acid methyl ester

生成物 1

HCID 666609142-[2-tert-Butoxycarbonylamino-3-(4-phenyl-cyclohexa-1,5-dienyloxy)-propionylamino]-3-methylbutyric acid methyl ester収率 64%

試薬・触媒・溶媒 3

HCID 178418476HCID 178418476、化合物触媒HCID 1140Toluene溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A solution of 2 M Na2CO3 (4 mL) was added at room temperature under an atmosphere of Argon to a mixture of the compound obtained in Example 22, step f (401 mg, 0.848 mmol), Pd(PPh3)2Cl2 (154 mg, 0.22 mmol) and phenylboronic acid (145 mg, 1.1872 mmol) in toluene (10 mL) and the reaction was heated to reflux. After 5 h, the reaction was cooled to room temperature. The mixture was diluted with EtOAc, and washed with brine. The combined organic layers were dried over anhydrous NaSO4 and concentrated under vacuum. The residue was purified by silica gel column chromatography which gave the title compound as a white solid (255 mg, 64%).

後処理

  1. temperaturethe reaction was heated to reflux
  2. washwashed with brine
  3. dry with materialThe combined organic layers were dried over anhydrous NaSO4
  4. concentrationconcentrated under vacuum
  5. customThe residue was purified by silica gel column chromatography which

出典と根拠

ORDレコード
ord-3a8fe606011848aeafd0d223340e9377
出典データセット
uspto-grants-2011_09
特許番号
US08022092B2

反応ノート

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