2-Hydroxyquinoline-3-carbaldehyde → 7-Fluoro-1-[2-(4-{[(2-oxo-1,2-dihydroquinolin-3-yl)methyl]amino}piperidin-1-yl)ethyl]quinoxalin-2(1H)-one

HRID 255342

반응식

HRID 255342 반응식
[NH2:1][CH:2]1[CH2:7][CH2:6][N:5]([CH2:8][CH2:9][N:10]2[C:19]3[C:14](=[CH:15][CH:16]=[C:17]([F:20])[CH:18]=3)[N:13]=[CH:12][C:11]2=[O:21])[CH2:4][CH2:3]1.[O:22]=[C:23]1[C:32]([CH:33]=O)=[CH:31][C:30]2[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=2)[NH:24]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>CO>[F:20][C:17]1[CH:18]=[C:19]2[C:14]([N:13]=[CH:12][C:11](=[O:21])[N:10]2[CH2:9][CH2:8][N:5]2[CH2:4][CH2:3][CH:2]([NH:1][CH2:33][C:32]3[C:23](=[O:22])[NH:24][C:25]4[C:30]([CH:31]=3)=[CH:29][CH:28]=[CH:27][CH:26]=4)[CH2:7][CH2:6]2)=[CH:15][CH:16]=1

참가 물질

5

반응물 3

HCID 5893342-Hydroxyquinoline-3-carbaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 593979071-(2-(4-aminopiperidin-1-yl)ethyl)-7-fluoroquinoxalin-2(1H)-one2회

생성물 1

HCID 159828027-Fluoro-1-[2-(4-{[(2-oxo-1,2-dihydroquinolin-3-yl)methyl]amino}piperidin-1-yl)ethyl]quinoxalin-2(1H)-one수율 35.4%

시약·촉매·용매 1

HCID 887Methanol용매

반응 조건

온도
0 °C

실험 절차

A mixture of 1-[2-(4-aminopiperidin-1-yl)ethyl]-7-fluoroquinoxalin-2(1H)-one (Intermediate 140, 130 mg, 0.448 mmol), 2-oxo-1,2-dihydroquinoline-3-carbaldehyde (65 mg, 0.448 mmol) and 3 Å molecular sieves (100 mg) in methanol (6.0 mL) was heated at reflux for 2.5 hours under nitrogen atmosphere. It was cooled to 0° C. and sodium triacetoxy borohydride (189.5 mg, 0.996 mmol) was added and the mixture was allowed to warm to room temperature and stirred overnight. The mixture was filtered and purified through silica gel plug (eluting with 15% methanol in methylene chloride) to give title compound (71 mg).

후처리

  1. temperaturewas heated
  2. temperatureat reflux for 2.5 hours under nitrogen atmosphere
  3. temperatureto warm to room temperature
  4. filtrationThe mixture was filtered
  5. custompurified through silica gel plug (eluting with 15% methanol in methylene chloride)

출처 및 근거

ORD 기록
ord-9847802978ff4a55817ee19ba6ca6ede
출처 데이터셋
uspto-grants-2011_01
특허 번호
US07875715B2

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