Potassium Carbonate → 4'-Fluoro-7'-(2-fluoropyridin-3-yl)-2'-methoxy-2,6-dihydrospiro[[1,4]oxazine-3,9'-xanthen]-5-amine

HRID 455646노트

반응식

HRID 455646 반응식
Br[C:2]1[CH:15]=[C:14]2[C:5]([O:6][C:7]3[C:8]([F:24])=[CH:9][C:10]([O:22][CH3:23])=[CH:11][C:12]=3[C:13]32[N:20]=[C:19]([NH2:21])[CH2:18][O:17][CH2:16]3)=[CH:4][CH:3]=1.[F:25][C:26]1[C:31](B(O)O)=[CH:30][CH:29]=[CH:28][N:27]=1.C(=O)([O-])[O-].[K+].[K+]>CC(P(C(C)(C)C)C1C=CC(N(C)C)=CC=1)(C)C.CC(P(C(C)(C)C)C1C=CC(N(C)C)=CC=1)(C)C.Cl[Pd]Cl.O1CCOCC1>[F:24][C:8]1[C:7]2[O:6][C:5]3[C:14](=[CH:15][C:2]([C:31]4[C:26]([F:25])=[N:27][CH:28]=[CH:29][CH:30]=4)=[CH:3][CH:4]=3)[C:13]3([N:20]=[C:19]([NH2:21])[CH2:18][O:17][CH2:16]3)[C:12]=2[CH:11]=[C:10]([O:22][CH3:23])[CH:9]=1

참가 물질

6

반응물 3

HCID 11430Potassium CarbonateHCID 27832702-Fluoropyridine-3-boronic acidHCID 584659217'-Bromo-4'-fluoro-2'-methoxy-2,6-dihydrospiro[[1,4]oxazine-3,9'-xanthen]-5-amine

생성물 1

HCID 674375114'-Fluoro-7'-(2-fluoropyridin-3-yl)-2'-methoxy-2,6-dihydrospiro[[1,4]oxazine-3,9'-xanthen]-5-amine수율 74.2%

시약·촉매·용매 2

HCID 11714597Bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II)촉매HCID 312751,4-Dioxane용매

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온도
85 °C

실험 절차

A 250 ml RB flask was charged with 7′-bromo-4′-fluoro-2′-methoxy-2,6-dihydrospiro[[1,4]oxazine-3,9′-xanthen]-5-amine (2.73 g, 6.94 mmol), bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II) (0.492 g, 0.694 mmol) and 2-fluoropyridin-3-ylboronic acid (1.467 g, 10.41 mmol). Dioxane (40 mL) and potassium carbonate (1M solution) (20.83 mL, 20.83 mmol) were added and the mixture was flushed with argon and heated at 85° C. for 30 minutes. The mixture was cooled to RT, diluted with EtOAc and the organic layer was separated and concentrated in vacuo to give a yellow semisolid. After trituration with 10 ml of EtOH the solid was filtered, washed with EtOH (2×1 ml) and dried on air overnight to afford 4′-fluoro-7′-(2-fluoropyridin-3-yl)-2′-methoxy-2,6-dihydrospiro[[1,4]oxazine-3,9′-xanthen]-5-amine (2.11 g, 5.15 mmol).

후처리

  1. customthe mixture was flushed with argon
  2. temperatureThe mixture was cooled to RT
  3. additiondiluted with EtOAc
  4. customthe organic layer was separated
  5. concentrationconcentrated in vacuo
  6. customto give a yellow semisolid
  7. filtrationAfter trituration with 10 ml of EtOH the solid was filtered
  8. washwashed with EtOH (2×1 ml)
  9. customdried on air overnight

출처 및 근거

ORD 기록
ord-b310fed1b87343919060d0b7c51605e7
출처 데이터셋
uspto-grants-2013_07
특허 번호
US08497264B2

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