Ammonium Chloride → Methyl 4-[(6-morpholin-4-yl-pyridazin-3-ylamino)-methyl]-benzoate

HRID 416236노트

반응식

HRID 416236 반응식
Cl[C:2]1[N:7]=[N:6][C:5]([N:8]2[CH2:13][CH2:12][O:11][CH2:10][CH2:9]2)=[CH:4][CH:3]=1.Cl.[NH2:15][CH2:16][C:17]1[CH:26]=[CH:25][C:20]([C:21]([O:23][CH3:24])=[O:22])=[CH:19][CH:18]=1.[NH4+].[Cl-]>CC(O)C>[N:8]1([C:5]2[N:6]=[N:7][C:2]([NH:15][CH2:16][C:17]3[CH:18]=[CH:19][C:20]([C:21]([O:23][CH3:24])=[O:22])=[CH:25][CH:26]=3)=[CH:3][CH:4]=2)[CH2:13][CH2:12][O:11][CH2:10][CH2:9]1

참가 물질

5

반응물 3

HCID 25517Ammonium ChlorideHCID 3210794-(6-Chloropyridazin-3-yl)morpholineHCID 2729253Methyl 4-(aminomethyl)benzoate hydrochloride

생성물 1

HCID 58930537Methyl 4-[(6-morpholin-4-yl-pyridazin-3-ylamino)-methyl]-benzoate수율 8.2%

시약·촉매·용매 1

HCID 3776Isopropanol용매

반응 조건

온도
150 °C

실험 절차

To a solution of 64 (2.0 g, 10.0 mmol) and methyl 4-(aminomethyl)benzoate hydrochloride (2.2 g, 11.0 mmol) in i-PrOH (200 mL) was added NH4Cl (2.14 g, 40.0 mmol). The reaction mixture was heated at 150° C. for 72 h and concentrated. The residue was dissolved in water and the aqueous phase was extracted with the aqueous phase was separated, treated with 1N NaOH (pH 8) and extracted with EtOAc. The extract was dried over anhydrous Na2SO4, filtered and concentrated. The residue was purified by flash chromatography on silica gel (MeOH/CH2Cl2: 2/98 to 5/95) to afford the title compound 65 (270 mg, 0.82 mmol, 8% yield). 1H NMR: (400 MHz, CDCl3) δ (ppm): 7.97 (d, J=8.0 Hz, 2H), 7.42 (d, J=8.0 Hz, 2H), 6.90 (d, J=9.2 Hz, 1H), 6.69 (d, J=9.2 Hz, 1H), 5.16-5.06 (bs, 1H), 4.67 (s, 2H), 3.90 (s, 3H), 3.82 (t, J=4.8 Hz, 4H), 3.41 (t, J=4.8 Hz, 4H).

후처리

  1. concentrationconcentrated
  2. dissolutionThe residue was dissolved in water
  3. extractionthe aqueous phase was extracted with the aqueous phase
  4. customwas separated
  5. additiontreated with 1N NaOH (pH 8)
  6. extractionextracted with EtOAc
  7. dry with materialThe extract was dried over anhydrous Na2SO4
  8. filtrationfiltered
  9. concentrationconcentrated
  10. customThe residue was purified by flash chromatography on silica gel (MeOH/CH2Cl2: 2/98 to 5/95)

출처 및 근거

ORD 기록
ord-a34ccd4fe18a477788c49479bf07f836
출처 데이터셋
uspto-grants-2012_01
특허 번호
US08088805B2

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