Triethylamine → 1-(3-benzyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-2-yl)propyl methanesulfonate

HRID 1784476ノート

反応式

HRID 1784476 の反応式
[CH2:1]([C:8]1[C:13](=[O:14])[N:12]2[CH2:15][CH2:16][CH2:17][CH2:18][C:11]2=[N:10][C:9]=1[CH:19]([OH:22])[CH2:20][CH3:21])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(CC)CC)C.[CH3:30][S:31](Cl)(=[O:33])=[O:32]>C(Cl)Cl>[CH3:30][S:31]([O:22][CH:19]([C:9]1[N:10]=[C:11]2[CH2:18][CH2:17][CH2:16][CH2:15][N:12]2[C:13](=[O:14])[C:8]=1[CH2:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1)[CH2:20][CH3:21])(=[O:33])=[O:32]

参加物

5

反応物 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 575931983-benzyl-2-(1-hydroxypropyl)-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

生成物 1

HCID 575932061-(3-benzyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-2-yl)propyl methanesulfonate収率 100%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

反応条件

温度
0 °C

実験手順

A mixture of 0.084 g (0.28 mmol) of the product (24) from Step 8 and 0.08 mL (0.56 mmol) of triethylamine in 2.5 mL of anhydrous DCM was cooled to 0° C. Then was added dropwise 0.03 mL (0.34 mmol) of methanesulfonyl chloride and the resulting mixture was allowed to warm to ambient temperature under nitrogen. Excess DCM was added and the reaction mixture was washed with water, saturated NaHCO3 and brine. The organic layer was then dried over MgSO4 and the solvent was removed in vacuo yielding 0.106 g (0.28 mmol, 100%) of 1-(3-benzyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-2-yl)propyl methanesulfonate (25) as a tan oil.

後処理

  1. temperatureto warm to ambient temperature under nitrogen
  2. washthe reaction mixture was washed with water, saturated NaHCO3 and brine
  3. dry with materialThe organic layer was then dried over MgSO4
  4. customthe solvent was removed in vacuo

出典と根拠

ORDレコード
ord-b32bd64ddf9145fab0ed069dc7d2ce92
出典データセット
uspto-grants-2009_03
特許番号
US07504405B2

反応ノート

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