Triethylamine → N-[3-(3-chloro-5-cyano-2-methyl-1H-pyrrol-1-yl)-1-methylpropyl]-2-cyano-3,4,4-trimethylpentanamide

HRID 1069150ノート

反応式

HRID 1069150 の反応式
[C:1]([CH:3]([CH:7]([CH3:12])[C:8]([CH3:11])([CH3:10])[CH3:9])[C:4]([OH:6])=O)#[N:2].[NH2:13][CH:14]([CH3:26])[CH2:15][CH2:16][N:17]1[C:21]([CH3:22])=[C:20]([Cl:23])[CH:19]=[C:18]1[C:24]#[N:25].C(N(CC)CC)C>S(Cl)(Cl)=O.C(OCC)(=O)C>[Cl:23][C:20]1[CH:19]=[C:18]([C:24]#[N:25])[N:17]([CH2:16][CH2:15][CH:14]([NH:13][C:4](=[O:6])[CH:3]([C:1]#[N:2])[CH:7]([CH3:12])[C:8]([CH3:11])([CH3:10])[CH3:9])[CH3:26])[C:21]=1[CH3:22]

参加物

6

反応物 3

HCID 8471TriethylamineHCID 218952532-Cyano-3,4,4-trimethylpentanoic acidHCID 218952681-(3-aminobutyl)-4-chloro-5-methyl-1H-pyrrole-2-carbonitrile

生成物 1

HCID 21895244N-[3-(3-chloro-5-cyano-2-methyl-1H-pyrrol-1-yl)-1-methylpropyl]-2-cyano-3,4,4-trimethylpentanamide

試薬・触媒・溶媒 2

HCID 8857Ethyl Acetate溶媒HCID 24386Thionyl Chloride溶媒2 回

実験手順

A solution of 0.54 g (3.5 mmol) 2-cyano-3,4,4-trimethylpentanoic acid in 15 mL thionyl chloride was heated at reflux for 30 min. The thionyl chloride was stripped and the residue was dried in vacuo. The residue was then dissolved in 20 mL methylene chloride and a solution of 0.66 g (3.13 mmol) of 1-(3-aminobutyl)-4-chloro-5-methyl-1H-pyrrole-2-carbonitrile and 0.59 mL (4.2 mmol) triethylamine was added dropwise. The mixture was stirred at room temperature overnight. Solvent was stripped and the residue was taken up in ethyl acetate which was washed with water and brine. Drying (MgSO4) and removal of solvent gave an oil which was chromatographed (40% ether in hexanes) on silica gel to give the title compound as a mixture of diastereomers, mp 111-118° C. 1H NMR (CDCl3) δ 1.0 (m, 3H), 1.2-1.3 (2 m, 6H), 1.4 (d, 1H), 1.6 (m, 2H), 1.9 (m, 2H), 2.2 (m, 3H), 4.1 (2m, 2H), 5.7 (m, 1H), 6.65 (2s, 1H).

後処理

  1. temperatureat reflux for 30 min
  2. customthe residue was dried in vacuo
  3. dissolutionThe residue was then dissolved in 20 mL methylene chloride
  4. washwas washed with water and brine
  5. customDrying
  6. custom(MgSO4) and removal of solvent
  7. customgave an oil which
  8. customwas chromatographed (40% ether in hexanes) on silica gel

出典と根拠

ORDレコード
ord-1665060fd721448c9bf4c13921fc1566
出典データセット
uspto-grants-2001_06
特許番号
US06251947B1

反応ノート

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