Hydroxypyridinone → Trocade

HRID 618474

反応式

HRID 618474 の反応式
O1CCN(CC[N+]#[C-])CC1.[C:11]([C@H:14]([C@@H:26]([CH2:35][CH:36]1[CH2:40][CH2:39][CH2:38][CH2:37]1)[C:27]([N:29]1[CH2:34][CH2:33][CH2:32][CH2:31][CH2:30]1)=[O:28])[CH2:15][N:16]1[C:20](=[O:21])[C:19]([CH3:23])([CH3:22])[N:18]([CH3:24])[C:17]1=[O:25])([OH:13])=O.[OH:41][N:42]1C=CC=CC1=O.C[Si](C)(C)ON>C(Cl)Cl>[CH:36]1([CH2:35][C@H:26]([C@@H:14]([C:11](=[O:13])[NH:42][OH:41])[CH2:15][N:16]2[C:20](=[O:21])[C:19]([CH3:23])([CH3:22])[N:18]([CH3:24])[C:17]2=[O:25])[C:27]([N:29]2[CH2:34][CH2:33][CH2:32][CH2:31][CH2:30]2)=[O:28])[CH2:40][CH2:39][CH2:38][CH2:37]1

参加物

6

反応物 4

HCID 69975HydroxypyridinoneHCID 2734666O-(Trimethylsilyl)hydroxylamineHCID 27594344-(2-Isocyanoethyl)morpholineHCID 112701291-[2(R)-[1(R)-carboxy-2-(3,4,4-trimethyl-2,5-dioxo-1-imidazolidinyl)ethyl]-3-cyclopentylpropionyl)piperdine

生成物 1

HCID 9824350Trocade収率 83.3%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

0.78 g of 2-morpholino-ethyl isocyanide was added to a suspension of 2.11 g of 1-[2(R)-[1(R)-carboxy-2-(3,4,4-trimethyl-2,5-dioxo-1-imidazolidinyl)ethyl]-3-cyclopentylpropionyl]piperidine (IX) from Example 5 or 6 and 0.61 g of N-hydroxy-2-pyridone in 21 ml of methylene chloride at 22° and the mixture was stirred for 3 hrs. The solution was treated with 0.58 g of O-trimethylsilyl-hydroxylamine and stirred for 2 hrs. The reaction mixture was washed with saturated NaHCO3 solution and with water and evaporated. The residue was dissolved in 20 ml of tert-butyl methyl ether and 0.23 ml of water, stirred at 22° for 11/2 hrs., the suspension was diluted with 10 ml of hexane, filtered and the residue was dried at 22°/11 mbar, there being obtained 1.82 g (83%) of pure 1-[3-cyclopentyl-2(R)-[1(R)-(hydroxycarbamoyl)-2-(3,4,4-trimethyl-2,5-dioxo-1-imidazolidinyl)ethyl]propionyl]piperidine (X), MS (EI): 436 (40%).

後処理

  1. stirringstirred for 2 hrs
  2. washThe reaction mixture was washed with saturated NaHCO3 solution and with water
  3. customevaporated
  4. dissolutionThe residue was dissolved in 20 ml of tert-butyl methyl ether
  5. stirring0.23 ml of water, stirred at 22° for 11/2 hrs
  6. addition, the suspension was diluted with 10 ml of hexane
  7. filtrationfiltered
  8. customthe residue was dried at 22°/11 mbar, there

出典と根拠

ORDレコード
ord-4870a929b0124621865c3edd3ab33719
出典データセット
uspto-grants-1999_09
特許番号
US05952507

関連ノート

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