Sodium Hydroxide → 2-[3-Chloro-6-[3-[4-(diphenylmethoxy)piperidino]propylamino]imidazo[1,2-b]pyridazin-2-yl]-2-methylpropionic Acid

HRID 1067540ノート

反応式

HRID 1067540 の反応式
Cl.Cl.[Cl:3][C:4]1[N:8]2[N:9]=[C:10]([NH:13][CH2:14][CH2:15][CH2:16][N:17]3[CH2:22][CH2:21][CH:20]([O:23][CH:24]([C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=4)[C:25]4[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=4)[CH2:19][CH2:18]3)[CH:11]=[CH:12][C:7]2=[N:6][C:5]=1[C:37]([CH3:44])([CH3:43])[C:38]([O:40]CC)=[O:39].[OH-].[Na+]>C(O)C>[Cl:3][C:4]1[N:8]2[N:9]=[C:10]([NH:13][CH2:14][CH2:15][CH2:16][N:17]3[CH2:18][CH2:19][CH:20]([O:23][CH:24]([C:25]4[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=4)[C:31]4[CH:32]=[CH:33][CH:34]=[CH:35][CH:36]=4)[CH2:21][CH2:22]3)[CH:11]=[CH:12][C:7]2=[N:6][C:5]=1[C:37]([CH3:44])([CH3:43])[C:38]([OH:40])=[O:39]

参加物

4

反応物 2

HCID 14798Sodium HydroxideHCID 22989228Ethyl 2-[3-chloro-6-[3-[4-(diphenylmethoxy)piperidino]propylamino]imidazo[1,2-b]pyridazin-2-yl]-2-methylpropionate dihydrochloride

生成物 1

HCID 229893252-[3-Chloro-6-[3-[4-(diphenylmethoxy)piperidino]propylamino]imidazo[1,2-b]pyridazin-2-yl]-2-methylpropionic Acid収率 84%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

653 mg of ethyl 2-[3-chloro-6-[3-[4-(diphenylmethoxy)piperidino]propylamino]imidazo[1,2-b]pyridazin-2-yl]-2-methylpropionate dihydrochloride was dissolved in 6 ml of ethanol; 1.97 ml of a 2 N aqueous solution of sodium hydroxide was added, followed by thermal refluxing for 2.5 hours. After cooling, the mixture was concentrated under reduced pressure; the residue was diluted with water and washed with ethyl acetate; the water layer was ajusted to pH 4.5 by the addition of 1 N hydrochloric acid. Acetone was added; the crystal precipitated was collected by filtration, washed with water-acetone (5:1) and dried to yield 465 mg of the title compound.

後処理

  1. customrefluxing for 2.5 hours
  2. temperatureAfter cooling
  3. concentrationthe mixture was concentrated under reduced pressure
  4. additionthe residue was diluted with water
  5. washwashed with ethyl acetate
  6. additionthe water layer was ajusted to pH 4.5 by the addition of 1 N hydrochloric acid
  7. additionAcetone was added
  8. customthe crystal precipitated
  9. filtrationwas collected by filtration
  10. washwashed with water-acetone (5:1)
  11. customdried

出典と根拠

ORDレコード
ord-8f60ff744ea749948c03fdefb544d6eb
出典データセット
uspto-grants-2001_06
特許番号
US06248740B1

反応ノート

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