Cesium carbonate → 2-(2-chloro-5-fluoropyridin-4-ylamino)-N-methylbenzamide

HRID 1045936

반응식

HRID 1045936 반응식
C(=O)([O-])[O-].[Cs+].[Cs+].[NH2:7][C:8]1[CH:17]=[CH:16][CH:15]=[CH:14][C:9]=1[C:10]([NH:12][CH3:13])=[O:11].[Cl:18][C:19]1[CH:24]=[C:23](I)[C:22]([F:26])=[CH:21][N:20]=1>O1CCOCC1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C.CC1(C)C2C=CC=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=2OC2C1=CC=CC=2P(C1C=CC=CC=1)C1C=CC=CC=1>[Cl:18][C:19]1[CH:24]=[C:23]([NH:7][C:8]2[CH:17]=[CH:16][CH:15]=[CH:14][C:9]=2[C:10]([NH:12][CH3:13])=[O:11])[C:22]([F:26])=[CH:21][N:20]=1

참가 물질

7

반응물 3

HCID 10796Cesium carbonateHCID 3080722-Amino-N-methylbenzamideHCID 248204952-Chloro-5-fluoro-4-iodopyridine

생성물 1

HCID 596201352-(2-chloro-5-fluoropyridin-4-ylamino)-N-methylbenzamide수율 83%

시약·촉매·용매 3

HCID 167845palladium(II) acetate촉매HCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)촉매HCID 312751,4-Dioxane용매

반응 조건

온도
80 °C

실험 절차

Cesium carbonate (651 mg, 2.00 mmol) was added to a mixture of 2-amino-N-methylbenzamide (150 mg, 1.00 mmol), 2-chloro-5-fluoro-4-iodopyridine (257 mg, 1.00 mmol), 9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene (35 mg, 0.06 mmol) and palladium(II) acetate (9 mg, 0.04 mmol) in dioxane (10 mL) under an atmosphere of nitrogen and the resulting suspension was heated at 80° C. for 24 hours. The mixture was filtered through Celite and the residue washed with CH2Cl2 (20 mL). The filtrate was evaporated and the residue was then dissolved in CH2Cl2 (40 mL) and washed sequentially with a saturated solution of NaHCO3 (25 mL), water (25 mL), and finally with a saturated solution of NaCl (25 mL). The organic layer was dried over MgSO4 and then evaporated to leave a solid. The solid was triturated in CH2Cl2 to afford 2-(2-chloro-5-fluoropyridin-4-ylamino)-N-methylbenzamide (231 mg, 83% yield); 1H NMR spectrum (300.132 MHz, d6 DMSO+d4 Acetic acid): δ 2.76 (3H, s), 7.19 (1H, m), 7.22 (1H, d), 7.50-7.58 (2H, m), 7.71 (1H, dd), 8.19 (1H, d); Mass spectrum: m/z (ESI+) (M+H)+=280.0 and 282.0.

후처리

  1. filtrationThe mixture was filtered through Celite
  2. washthe residue washed with CH2Cl2 (20 mL)
  3. customThe filtrate was evaporated
  4. dissolutionthe residue was then dissolved in CH2Cl2 (40 mL)
  5. washwashed sequentially with a saturated solution of NaHCO3 (25 mL), water (25 mL)
  6. dry with materialThe organic layer was dried over MgSO4
  7. customevaporated
  8. customto leave a solid
  9. customThe solid was triturated in CH2Cl2

출처 및 근거

ORD 기록
ord-e750ef28b3f04adc9657fbdd73124de8
출처 데이터셋
uspto-grants-2013_10
특허 번호
US08569298B2

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