Sodium Carbonate → 5-(2,4-Bis-benzyloxy-5-isobutyl-phenyl)-4-(4-formyl-phenyl)-isoxazole-3-carboxylic acid ethylamide

HRID 2097303노트

반응식

HRID 2097303 반응식
[CH2:1]([NH:3][C:4]([C:6]1[C:10](I)=[C:9]([C:12]2[CH:17]=[C:16]([CH2:18][CH:19]([CH3:21])[CH3:20])[C:15]([O:22][CH2:23][C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=3)=[CH:14][C:13]=2[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[O:8][N:7]=1)=[O:5])[CH3:2].C([O-])([O-])=O.[Na+].[Na+].[CH:44]([C:46]1[CH:51]=[CH:50][C:49](B(O)O)=[CH:48][CH:47]=1)=[O:45]>CN(C=O)C.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>[CH2:1]([NH:3][C:4]([C:6]1[C:10]([C:49]2[CH:50]=[CH:51][C:46]([CH:44]=[O:45])=[CH:47][CH:48]=2)=[C:9]([C:12]2[CH:17]=[C:16]([CH2:18][CH:19]([CH3:21])[CH3:20])[C:15]([O:22][CH2:23][C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=3)=[CH:14][C:13]=2[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[O:8][N:7]=1)=[O:5])[CH3:2]

참가 물질

6

반응물 3

HCID 10340Sodium CarbonateHCID 5910734-Formylphenylboronic AcidHCID 24773447HCID 24773447, 화합물

생성물 1

HCID 247735315-(2,4-Bis-benzyloxy-5-isobutyl-phenyl)-4-(4-formyl-phenyl)-isoxazole-3-carboxylic acid ethylamide

시약·촉매·용매 2

HCID 178418476HCID 178418476, 화합물촉매HCID 6228Dimethylformamide용매

실험 절차

5-(2,4-Bis-benzyloxy-5-isobutyl-phenyl)-4-iodo-isoxazole-3-carboxylic acid ethylamide (1 eq) was dissolved in DMF and 1M Na2CO3 (aq) (3 eq) was added, followed by 4-formylphenylboronic acid (2 eq) and catalytic PdCl2(PPh3)2. Nitrogen was bubbled through the solution for ten minutes at ambient temperature, after which time, the temperature was elevated to 80° C. under a nitrogen atmosphere, for 2 hours. The reaction mixture was allowed to cool to room temperature and the reaction mixture was diluted with ethyl acetate. This solution was washed with brine, then dried over magnesium sulfate, filtered and concentrated in vacuo to give an oil which was purified by column chromatography, eluting with 10% EtOAc in hexane, to give 5-(2,4-bis-benzyloxy-5-isobutyl-phenyl)-4-(4-formyl-phenyl)-isoxazole-3-carboxylic acid ethylamide as a white solid.

후처리

  1. customNitrogen was bubbled through the solution for ten minutes at ambient temperature
  2. additionthe reaction mixture was diluted with ethyl acetate
  3. washThis solution was washed with brine
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customto give an oil which
  8. customwas purified by column chromatography
  9. washeluting with 10% EtOAc in hexane

출처 및 근거

ORD 기록
ord-3a1a812557694bc18853d238e4a32680
출처 데이터셋
uspto-grants-2013_05
특허 번호
US08450310B2

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