Sodium Hydroxide → N-[[-(methoxycarbonyl)phenyl]sulfonyl]-3-(p-nitrophenyl)-D-alanine

HRID 963285

反応式

HRID 963285 の反応式
[N+:1]([C:4]1[CH:15]=[CH:14][C:7]([CH2:8][C@H:9]([C:11]([OH:13])=[O:12])[NH2:10])=[CH:6][CH:5]=1)([O-:3])=[O:2].[OH-].[Na+].C(=O)(O)[O-].[Na+].Cl[S:24]([C:27]1[CH:36]=[CH:35][CH:34]=[CH:33][C:28]=1[C:29]([O:31][CH3:32])=[O:30])(=[O:26])=[O:25]>O1CCOCC1>[CH3:32][O:31][C:29]([C:28]1[CH:33]=[CH:34][CH:35]=[CH:36][C:27]=1[S:24]([NH:10][C@@H:9]([C:11]([OH:13])=[O:12])[CH2:8][C:7]1[CH:6]=[CH:5][C:4]([N+:1]([O-:3])=[O:2])=[CH:15][CH:14]=1)(=[O:26])=[O:25])=[O:30]

参加物

6

反応物 4

HCID 14798Sodium HydroxideHCID 117830Benzoic acid, 2-(chlorosulfonyl)-, methyl esterHCID 516892Sodium BicarbonateHCID 679497p-Nitro-D-phenylalanine

生成物 1

HCID 18659415N-[[-(methoxycarbonyl)phenyl]sulfonyl]-3-(p-nitrophenyl)-D-alanine収率 71.6%

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

実験手順

2.3 g of p-nitro-D-phenylalanine are suspended in 25 ml of dioxan and treated with 10 ml of 1N sodium hydroxide solution and 1.7 g of sodium bicarbonate. A solution of 2.6 g of methyl 2-chiorosulfonylbenzoate in 22 ml of dioxanl is added dropwise thereto and the mixture is stirred at room temperature for 9 hours. The reaction mixture is poured into ice-cold 2N hydrochloric acid and extracted with ethyl acetate. The organic phase is washed with water, dried and evaporated. There are 35 obtained 3.2 g of N-[[o-(methoxycarbonyl)phenyl]sulfonyl]-3-(p-nitrophenyl)-D-alanine.

後処理

  1. extractionextracted with ethyl acetate
  2. washThe organic phase is washed with water
  3. customdried
  4. customevaporated

出典と根拠

ORDレコード
ord-b2065f3ee18a4a9c88336754a05a8ace
出典データセット
uspto-grants-1998_06
特許番号
US05763436

関連ノート

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