2-Naphthalenecarboxaldehyde → (Z)-2-[[2-bromo-4-[[(3-hydroxybenzyl)amino]carbonyl]benzoyl]amino]-3-(naphthalen-2-yl)propenoic acid methyl ester

HRID 1058416ノート

反応式

HRID 1058416 の反応式
CN(C)C(N(C)C)=N.[CH3:9][O:10][C:11](=[O:40])[CH:12](P(OC)(OC)=O)[NH:13][C:14](=[O:33])[C:15]1[CH:20]=[CH:19][C:18]([C:21]([NH:23][CH2:24][C:25]2[CH:30]=[CH:29][CH:28]=[C:27]([OH:31])[CH:26]=2)=[O:22])=[CH:17][C:16]=1[Br:32].[CH:41]1[C:50]2[C:45](=[CH:46][CH:47]=[CH:48][CH:49]=2)[CH:44]=[CH:43][C:42]=1[CH:51]=O.C(OCC)(=O)C>O1CCCC1>[CH3:9][O:10][C:11](=[O:40])/[C:12](/[NH:13][C:14](=[O:33])[C:15]1[CH:20]=[CH:19][C:18]([C:21]([NH:23][CH2:24][C:25]2[CH:30]=[CH:29][CH:28]=[C:27]([OH:31])[CH:26]=2)=[O:22])=[CH:17][C:16]=1[Br:32])=[CH:51]/[C:42]1[CH:43]=[CH:44][C:45]2[C:50](=[CH:49][CH:48]=[CH:47][CH:46]=2)[CH:41]=1

参加物

6

反応物 4

HCID 62012-NaphthalenecarboxaldehydeHCID 8857Ethyl AcetateHCID 664601,1,3,3-TetramethylguanidineHCID 23560709Rac.-n-[2-bromo-4-[[(3-hydroxybenzyl)amino]carbonyl]benzoyl]-2-(dimethoxyphosphinyl)glycine methyl ester

生成物 1

HCID 59038424(Z)-2-[[2-bromo-4-[[(3-hydroxybenzyl)amino]carbonyl]benzoyl]amino]-3-(naphthalen-2-yl)propenoic acid methyl ester収率 78.7%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒2 回

反応条件

温度
-20 °C

実験手順

1,1,3,3-Tetramethylguanidine (50.5 μL, 0.40 mmol) was added to a solution of rac.-N-[2-bromo-4-[[(3-hydroxybenzyl)amino]carbonyl]benzoyl]-2-(dimethoxyphosphinyl)glycine methyl ester (Example 130; 106.4 mg, 0.20 mmol) in tetrahydrofuran (1 mL) at −20° C. After 5 min, a solution of naphthalene-2-carboxaldehyde (31.4 mg, 0.20 mmol) in tetrahydrofuran (0.5 mL) was added. The solution was stirred at −20° C. for 1 h and then was stirred at room temperature for 4 h. Ethyl acetate (15 mL) was added and the solution was washed with 1N hydrochloric acid solution (10 mL) and brine (10 mL). The dried (MgSO4) organic phase was filtered, evaporated and the resulting residue was triturated with petroleum ether to furnish (Z)-2-[[2-bromo-4-[[(3-hydroxybenzyl)amino]carbonyl]benzoyl]amino]-3-(naphthalen-2-yl)propenoic acid methyl ester (88 mg, 78% yield) as a yellow solid.

後処理

  1. stirringwas stirred at room temperature for 4 h
  2. washthe solution was washed with 1N hydrochloric acid solution (10 mL) and brine (10 mL)
  3. dry with materialThe dried (MgSO4) organic phase
  4. filtrationwas filtered
  5. customevaporated
  6. customthe resulting residue was triturated with petroleum ether

出典と根拠

ORDレコード
ord-0cad13dda78343c9a5ec91b267cb464c
出典データセット
uspto-grants-2003_02
特許番号
US06515124B2

反応ノート

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