Diisopropylethylamine → HCID 178493498, 화합물

HRID 43222노트

반응식

HRID 43222 반응식
[F:1][C:2]1[C:7]([O:8][CH3:9])=[CH:6][C:5]([O:10][CH3:11])=[C:4]([F:12])[C:3]=1[C:13]1[C:22]2[N:21]=[CH:20][CH:19]=[N:18][C:17]=2[C:16]([C:23](O)=[O:24])=[CH:15][CH:14]=1.C(OC([N:33]1[CH:37]=[C:36]([CH:38](OCC)[O:39]CC)[N:35]=[C:34]1[NH2:45])=O)(C)(C)C.CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C.CCOC(C)=O.O>[CH:38]([C:36]1[N:35]=[C:34]([NH:45][C:23]([C:16]2[C:17]3[N:18]=[CH:19][CH:20]=[N:21][C:22]=3[C:13]([C:3]3[C:4]([F:12])=[C:5]([O:10][CH3:11])[CH:6]=[C:7]([O:8][CH3:9])[C:2]=3[F:1])=[CH:14][CH:15]=2)=[O:24])[NH:33][CH:37]=1)=[O:39]

참가 물질

7

반응물 4

HCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 592928212-Amino-4-diethoxymethyl-imidazole-1-carboxylic acid tert-butyl esterHCID 592928348-(2,6-Difluoro-3,5-dimethoxy-phenyl)quinoxaline-5-carboxylic acid

생성물 1

HCID 178493498HCID 178493498, 화합물수율 68.5%

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 22728543Water ethylacetate용매

실험 절차

A mixture of 8-(2,6-difluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid (200 mg, 0.578 mmol) (Step 185.1), 2-amino-4-diethoxymethyl-imidazole-1-carboxylic acid tert-butyl ester (198 mg, 0.693 mmol, 1.2 equiv) (Step 179.8), TBTU (223 mg, 0.693 mmol, 1.2 equiv), DIEA (74.7 mg, 0.578 mmol) in DMF (4 mL) was stirred for 18 h at rt. The reaction mixture was diluted in EtOAc/H2O and extracted with EtOAc. The organic phase was washed with H2O and brine, dried (Na2SO4), filtered and concentrated. The resulting yellow foam (405 mg) was dissolved in acetone (5 mL) and H2O (3 mL) and treated with PPTS (30 mg). The reaction mixture was heated to 50° C., stirred for 2 h, allowed to cool to rt and diluted with EtOAc/H2O. The resulting yellow precipitate was collected by vacuum filtration and dried to provide 174 mg of the title compound: ES-MS: 440 [M+H]+; tR=3.89 min (System 1).

후처리

  1. extractionextracted with EtOAc
  2. washThe organic phase was washed with H2O and brine
  3. dry with materialdried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. dissolutionThe resulting yellow foam (405 mg) was dissolved in acetone (5 mL)
  7. additionH2O (3 mL) and treated with PPTS (30 mg)
  8. temperatureThe reaction mixture was heated to 50° C.
  9. stirringstirred for 2 h
  10. temperatureto cool to rt
  11. additiondiluted with EtOAc/H2O
  12. filtrationThe resulting yellow precipitate was collected by vacuum filtration
  13. customdried

출처 및 근거

ORD 기록
ord-c451f92c1a10417599046efe7e39cebd
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08536175B2

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