1,2-Dichloroethane → 4-Bromo-N-(4-(2-hydroxy-2-methylpropoxy)-3-methoxyphenyl)-1H-pyrrole-2-carboxamide

HRID 1987920ノート

反応式

HRID 1987920 の反応式
[Br:1][C:2]1[CH:3]=[C:4]([C:7]([OH:9])=O)[NH:5][CH:6]=1.[NH2:10][C:11]1[CH:22]=[CH:21][C:14]([O:15][CH2:16][C:17]([CH3:20])([OH:19])[CH3:18])=[C:13]([O:23][CH3:24])[CH:12]=1.C(Cl)CCl.C1C=CC2N(O)N=NC=2C=1>ClC(Cl)C.CCOC(C)=O>[Br:1][C:2]1[CH:3]=[C:4]([C:7]([NH:10][C:11]2[CH:22]=[CH:21][C:14]([O:15][CH2:16][C:17]([OH:19])([CH3:20])[CH3:18])=[C:13]([O:23][CH3:24])[CH:12]=2)=[O:9])[NH:5][CH:6]=1

参加物

7

反応物 4

HCID 111,2-DichloroethaneHCID 757711-HydroxybenzotriazoleHCID 27413814-bromo-1H-pyrrole-2-carboxylic acidHCID 595950521-(4-Amino-2-methoxyphenoxy)-2-methylpropan-2-ol

生成物 1

HCID 672152534-Bromo-N-(4-(2-hydroxy-2-methylpropoxy)-3-methoxyphenyl)-1H-pyrrole-2-carboxamide収率 90.6%

試薬・触媒・溶媒 2

HCID 63651,1-Dichloroethane溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of 4-bromo-1H-pyrrole-2-carboxylic acid (1.00 g, 5.30 mmol), preparation described in step A of Example 2, and 1-(4-amino-2-methoxyphenoxy)-2-methylpropan-2-ol (1.12 g, 5.30 mmol), preparation described in step A of Example 4. in dichloroethane (46.0 mL) was added EDC (2.03 g, 10.6 mmol) and HOBT (1.62 g, 10.6 mmol) and the reaction was allowed to stir at rt for 16 h. The reaction mixture was diluted with EtOAc (100 mL), washed with sat. NaHCO3 (3×100 mL), water, brine, dried over anhydrous Na2SO4 and concentrated to give 1.84 g of the title compound as a brown oil which was used in the next step without purification: HPLC a) column: Phenomenex Luna 5μ 4.6×50 mm, 4 min gradient, 10% MeOH/90% H2O/0.1% H3PO4 to 90% MeOH/10% H2O/0.1% H3PO4; 1 min hold, 4 mL/min UV detection at 220 nm, 3.058 min retention time, (91%); HPLC b) column: Phenomenex Luna C18 4.6×50 mm, 4 min gradient, 10% MeOH/90% H2O/0.1% TFA to 90% MeOH/10% H2O/0.1% TFA, 1 min hold; 4 mL/min, UV detection at 220 nm, 3.051 min retention time; MS (ES) 385 [M+H]+.

後処理

  1. washwashed with sat. NaHCO3 (3×100 mL), water, brine
  2. dry with materialdried over anhydrous Na2SO4
  3. concentrationconcentrated

出典と根拠

ORDレコード
ord-71b4a0b2807c4f8a841fa85edd0a6e4b
出典データセット
uspto-grants-2009_06
特許番号
US07553836B2

反応ノート

読み込み中…