4-benzyloxy-N-[2,2-diethoxy-2-(2-isobutyl-6-methyl-pyridin-4-yl)-ethyl]-3-ethyl-5-methyl-benzamide → 4-benzyloxy-3-ethyl-N-[2-(2-isobutyl-6-methyl-pyridin-4-yl)-2-oxo-ethyl]-5-methyl-benzamide

HRID 2040831ノート

反応式

HRID 2040831 の反応式
[CH2:1]([O:8][C:9]1[C:36]([CH3:37])=[CH:35][C:12]([C:13]([NH:15][CH2:16][C:17](OCC)([O:29]CC)[C:18]2[CH:23]=[C:22]([CH3:24])[N:21]=[C:20]([CH2:25][CH:26]([CH3:28])[CH3:27])[CH:19]=2)=[O:14])=[CH:11][C:10]=1[CH2:38][CH3:39])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>CC(C)=O.Cl>[CH2:1]([O:8][C:9]1[C:36]([CH3:37])=[CH:35][C:12]([C:13]([NH:15][CH2:16][C:17]([C:18]2[CH:23]=[C:22]([CH3:24])[N:21]=[C:20]([CH2:25][CH:26]([CH3:28])[CH3:27])[CH:19]=2)=[O:29])=[O:14])=[CH:11][C:10]=1[CH2:38][CH3:39])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

4

反応物 1

HCID 685531514-benzyloxy-N-[2,2-diethoxy-2-(2-isobutyl-6-methyl-pyridin-4-yl)-ethyl]-3-ethyl-5-methyl-benzamide

生成物 1

HCID 685527854-benzyloxy-3-ethyl-N-[2-(2-isobutyl-6-methyl-pyridin-4-yl)-2-oxo-ethyl]-5-methyl-benzamide収率 36.3%

試薬・触媒・溶媒 2

HCID 180Acetone溶媒HCID 313Hydrochloric Acid溶媒

反応条件

温度
70 °C

実験手順

To a solution of the above 4-benzyloxy-N-[2,2-diethoxy-2-(2-isobutyl-6-methyl-pyridin-4-yl)-ethyl]-3-ethyl-5-methyl-benzamide (112 mg, 0.210 mmol) in acetone (5 mL), 1 N aq. HCl (5.5 mL) is added and the mixture is stirred at 70° C. for 5 h. The acetone is evaporated and the remaining mixture is cooled to 0° C. before it is neutralized with aq. NaOH solution and extracted twice with EA (2×20 mL). The combined org. extracts are dried over Na2SO4, filtered and concentrated. The crude product is purified by prep. TLC using heptane:EA 1:2 to give 4-benzyloxy-3-ethyl-N-[2-(2-isobutyl-6-methyl-pyridin-4-yl)-2-oxo-ethyl]-5-methyl-benzamide (35 mg) as a yellow wax; LC-MS: tR=1.03*, [M+1]+=458.91.

後処理

  1. customThe acetone is evaporated
  2. temperaturethe remaining mixture is cooled to 0° C. before it
  3. extractionextracted twice with EA (2×20 mL)
  4. dry with materialextracts are dried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe crude product is purified by prep

出典と根拠

ORDレコード
ord-f9d6f53829db4f2cbd19cfedf06d0426
出典データセット
uspto-grants-2013_11
特許番号
US08580824B2

反応ノート

読み込み中…