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

反応式

HRID 255342 の反応式
[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

参加物

5

反応物 3

HCID 5893342-Hydroxyquinoline-3-carbaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 593979071-(2-(4-aminopiperidin-1-yl)ethyl)-7-fluoroquinoxalin-2(1H)-one2 回

生成物 1

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

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

反応条件

温度
0 °C

実験手順

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).

後処理

  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)

出典と根拠

ORDレコード
ord-9847802978ff4a55817ee19ba6ca6ede
出典データセット
uspto-grants-2011_01
特許番号
US07875715B2

関連ノート

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