Tetrahydrofuran → N-(6-amino-5-bromo(2-pyridyl))(2-fluorophenyl)carboxamide

HRID 2272191노트

반응식

HRID 2272191 반응식
[Br:1][C:2]1[C:3]([NH2:9])=[N:4][C:5]([NH2:8])=[CH:6][CH:7]=1.C(N(CC)CC)C.C1COCC1.[F:22][C:23]1[CH:31]=[CH:30][CH:29]=[CH:28][C:24]=1[C:25](Cl)=[O:26]>C(Cl)Cl>[NH2:9][C:3]1[N:4]=[C:5]([NH:8][C:25]([C:24]2[CH:28]=[CH:29][CH:30]=[CH:31][C:23]=2[F:22])=[O:26])[CH:6]=[CH:7][C:2]=1[Br:1]

참가 물질

6

반응물 4

HCID 8028TetrahydrofuranHCID 8471TriethylamineHCID 98082-Fluorobenzoyl chlorideHCID 14158683-Bromopyridine-2,6-diamine

생성물 1

HCID 58487036N-(6-amino-5-bromo(2-pyridyl))(2-fluorophenyl)carboxamide수율 57%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

반응 조건

온도
-78 °C

실험 절차

A solution of 3-bromo-2,6-diaminopyridine (60) (564 mg, 3 mmol), triethyl amine (0.54 ml) in DCM (6 ml)/THF (4 ml) was cooled down to −78° C. A solution of 2-fluorobenzoyl chloride (362 μl, 3.03 mmol) in 2 ml DCM was added dropwise within 10 min. The resulting reaction mixture was stirred at −78° C. for 1 h before slowly warm up to r.t. After stirred at r.t. for 3 h, the reaction quenched with aq NaHCO3 solution. 200 ml EA were added. Org. phase was washed with brine, dried over sodium sulfate, concentrated. The light yellow solid residue was triturated with DCM (ca. 15 ml), filtered and dried to give 530 mg N-(6-amino-5-bromo(2-pyridyl))(2-fluorophenyl)carboxamide (61) as white solid. (purity>95%, yield: 57%).

후처리

  1. customThe resulting reaction mixture
  2. temperaturebefore slowly warm up to r.t
  3. stirringAfter stirred at r.t. for 3 h
  4. customthe reaction quenched with aq NaHCO3 solution
  5. addition200 ml EA were added
  6. washphase was washed with brine
  7. dry with materialdried over sodium sulfate
  8. concentrationconcentrated
  9. customThe light yellow solid residue was triturated with DCM (ca. 15 ml)
  10. filtrationfiltered
  11. customdried

출처 및 근거

ORD 기록
ord-fbb468b0f2cd4f9ab2a189a90ebb9587
출처 데이터셋
uspto-grants-2015_09
특허 번호
US09120751B2

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