Water → 3-{2-[(2R)-2-(tert-butyldimethyl silanyloxy)-2-(4-hydroxy-3-hydroxymethyl-phenyl)ethylamino]-2-methylpropyl}benzoic acid

HRID 1866512ノート

反応式

HRID 1866512 の反応式
C[O:2][C:3](=[O:34])[C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([CH2:10][C:11]([NH:14][CH2:15][C@H:16]([O:26][Si:27]([C:30]([CH3:33])([CH3:32])[CH3:31])([CH3:29])[CH3:28])[C:17]2[CH:22]=[CH:21][C:20]([OH:23])=[C:19]([CH2:24][OH:25])[CH:18]=2)([CH3:13])[CH3:12])[CH:5]=1.[OH-].[Na+].O>O1CCOCC1>[Si:27]([O:26][C@H:16]([C:17]1[CH:22]=[CH:21][C:20]([OH:23])=[C:19]([CH2:24][OH:25])[CH:18]=1)[CH2:15][NH:14][C:11]([CH3:13])([CH3:12])[CH2:10][C:6]1[CH:5]=[C:4]([CH:9]=[CH:8][CH:7]=1)[C:3]([OH:34])=[O:2])([C:30]([CH3:31])([CH3:32])[CH3:33])([CH3:29])[CH3:28]

参加物

5

反応物 3

HCID 962WaterHCID 14798Sodium HydroxideHCID 690248003-(2-[(2R)-2-(tert-butyldimethylsilanyloxy)-2-(4-hydroxy-3-hydroxymethyl-phenyl)ethylamino]-2-methylpropyl}benzoic acid methyl ester

生成物 1

HCID 579783093-{2-[(2R)-2-(tert-butyldimethyl silanyloxy)-2-(4-hydroxy-3-hydroxymethyl-phenyl)ethylamino]-2-methylpropyl}benzoic acid収率 87.7%

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

実験手順

3-{2-[(2R)-2-(tert-butyldimethylsilanyloxy)-2-(4-hydroxy-3-hydroxymethyl-phenyl)ethylamino]-2-methylpropyl}benzoic acid methyl ester (Preparation 36) (1.50 g, 3.08 mmol), aqueous sodium hydroxide solution (5M, 3.07 ml, 15.0 mmol), water (2 ml) and dioxane (20 ml) were stirred at room temperature for 18 hours. The solvent was removed in vacuo and the residue dissolved in water (30 ml) and acidified with aqueous hydrochloric acid (1N, 15.38 ml). The resulting white precipitate was filtered off and dried in vacuo for 72 hours to furnish the title compound as a white solid (1.28 g). 1H NMR (400 MHz, CD3OD) δ=7.88 (1H, d), 7.81 (1H, bs), 7.38-7.28 (3H, m), 7.10 (1H, dd), 6.77 (1H, d), 4.92 (1H, m, partially under solvent peak), 4.61 (2H, dd), 3.23-3.12 (2H, m), 2.95 (2H, dd), 1.08 (6H, s), 0.81 (9H, s), −0.04 (3H, s), −0.15 (3H, s). LRMS (electrospray) m/z 474 [M+H]+

後処理

  1. customThe solvent was removed in vacuo
  2. dissolutionthe residue dissolved in water (30 ml)
  3. filtrationThe resulting white precipitate was filtered off
  4. customdried in vacuo for 72 hours

出典と根拠

ORDレコード
ord-4e1353e28a0149079dc2ebfb1c46e4ce
出典データセット
uspto-grants-2009_12
特許番号
US07629358B2

反応ノート

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