2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenyl → 4-(4-{4-[(2-Phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperidin-1-yl)-benzoic acid tert-butyl ester

HRID 1510293ノート

反応式

HRID 1510293 の反応式
[NH:1]1[CH2:6][CH2:5][CH:4]([C:7]2[CH:12]=[CH:11][C:10]([NH:13][C:14]([C:16]3[N:17]=[C:18]([C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)[O:19][C:20]=3[C:21]([F:24])([F:23])[F:22])=[O:15])=[CH:9][CH:8]=2)[CH2:3][CH2:2]1.[C:31]([O:35][C:36](=[O:44])[C:37]1[CH:42]=[CH:41][C:40](Br)=[CH:39][CH:38]=1)([CH3:34])([CH3:33])[CH3:32].CC(C)([O-])C.[Na+].C(C1C=C(C(C)C)C=C(C(C)C)C=1C1C=CC=CC=1P(C1CCCCC1)C1CCCCC1)(C)C>O1CCOCC1>[C:31]([O:35][C:36](=[O:44])[C:37]1[CH:42]=[CH:41][C:40]([N:1]2[CH2:6][CH2:5][CH:4]([C:7]3[CH:8]=[CH:9][C:10]([NH:13][C:14]([C:16]4[N:17]=[C:18]([C:25]5[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=5)[O:19][C:20]=4[C:21]([F:22])([F:23])[F:24])=[O:15])=[CH:11][CH:12]=3)[CH2:3][CH2:2]2)=[CH:39][CH:38]=1)([CH3:34])([CH3:32])[CH3:33]

参加物

6

反応物 4

HCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 11334366Tert-butyl 4-bromobenzoateHCID 23676156Sodium t-butoxideHCID 529371572-Phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-piperidin-4-yl-phenyl)-amide

生成物 1

HCID 674271094-(4-{4-[(2-Phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperidin-1-yl)-benzoic acid tert-butyl ester収率 12.3%

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

反応条件

温度
105 °C

実験手順

To a mixture of 2-phenyl-5-trifluoromethyl-oxazole-4-carboxylic acid (4-piperidin-4-yl-phenyl)-amide (227 mg, 0.55 mmol), 4-bromobenzoic acid tert-butyl ester (170 mg, 0.66 mmol), sodium tert-butoxide (106 mg, 1.1 mmol) and (2′,4′,6′-triisopropyl-1,1′-biphenyl-2-yl)dicyclohexylphosphine (X-PHOS, 38 mg) in dioxane (5 mL) bubbled with argon was added tris(dibenzylideneacetone)dipalladium Pd2(dba)3 (23 mg). The mixture was heated at 105° C. for 2 hrs. Solvents were evaporated and the residue was extracted with ethyl acetate and 0.1N hydrochloric acid. The organic layer was dried and concentrated. The residue was crystallized from ethyl acetate to give a pale yellow solid as 4-(4-{4-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-phenyl}-piperidin-1-yl)-benzoic acid tert-butyl ester (40 mg).

後処理

  1. custombubbled with argon
  2. additionwas added tris(dibenzylideneacetone)dipalladium Pd2(dba)3 (23 mg)
  3. customSolvents were evaporated
  4. extractionthe residue was extracted with ethyl acetate and 0.1N hydrochloric acid
  5. customThe organic layer was dried
  6. concentrationconcentrated
  7. customThe residue was crystallized from ethyl acetate

出典と根拠

ORDレコード
ord-236c63785a934e1589f3eacce8787581
出典データセット
uspto-grants-2012_07
特許番号
US08211914B2

反応ノート

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