Sodium Hydroxide → 6-[2-(Methylthio)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-6-yl]pyridine-2-carboxylic acid

HRID 1052019ノート

反応式

HRID 1052019 の反応式
C[O:2][C:3]([C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([N:11]2[CH2:22][CH2:21][C:14]3[N:15]=[C:16]([S:19][CH3:20])[N:17]=[CH:18][C:13]=3[CH2:12]2)[N:6]=1)=[O:4].[OH-].[Na+]>O1CCOCC1>[CH3:20][S:19][C:16]1[N:17]=[CH:18][C:13]2[CH2:12][N:11]([C:7]3[N:6]=[C:5]([C:3]([OH:4])=[O:2])[CH:10]=[CH:9][CH:8]=3)[CH2:22][CH2:21][C:14]=2[N:15]=1

参加物

4

実験手順

A solution of methyl-6-[2-(methylthio)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-6-yl]pyridine-2-carboxylate (2.76 g, 8.72 mmol) in 1,4-dioxane (50 ml) was treated with 1.0 N NaOH(aq.) (13.09 ml, 13.09 mmol) and the reaction mixture was stirred at room temperature for 2 hours. The solvent was removed in vacuo and the residue was diluted with water. The aqueous phase was washed with diethyl ether and acidified to pH˜5-6 with 1.0 N HCl(aq.). The precipitate was collected, washed with water, ethyl acetate, and dried to give the title compound as a yellow, amorphous solid (2.52 g, 96%).

後処理

  1. customThe solvent was removed in vacuo
  2. additionthe residue was diluted with water
  3. washThe aqueous phase was washed with diethyl ether
  4. customThe precipitate was collected
  5. washwashed with water, ethyl acetate
  6. customdried

出典と根拠

ORDレコード
ord-7f1bb55d3f9b4e629324a22e367e54d3
出典データセット
uspto-grants-2016_07
特許番号
US09388176B2

反応ノート

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