Acetaldehyde → 3-Cyclopropylmethyl-8-[4-(ethyl-amino)-benzyl]-1-(2-fluorobenzyl)-3,7-dihydro-purine-2,6-dione

HRID 720688ノート

反応式

HRID 720688 の反応式
[CH:1]1([CH2:4][N:5]2[C:13]3[N:12]=[C:11]([CH2:14][C:15]4[CH:20]=[CH:19][C:18]([NH2:21])=[CH:17][CH:16]=4)[NH:10][C:9]=3[C:8](=[O:22])[N:7]([CH2:23][C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[F:30])[C:6]2=[O:31])[CH2:3][CH2:2]1.[CH:32](=O)[CH3:33]>[Pd].O1CCCC1>[CH:1]1([CH2:4][N:5]2[C:13]3[N:12]=[C:11]([CH2:14][C:15]4[CH:16]=[CH:17][C:18]([NH:21][CH2:32][CH3:33])=[CH:19][CH:20]=4)[NH:10][C:9]=3[C:8](=[O:22])[N:7]([CH2:23][C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[F:30])[C:6]2=[O:31])[CH2:3][CH2:2]1

参加物

5

反応物 2

HCID 177AcetaldehydeHCID 218917373-Cyclopropylmethyl-8-[4-aminobenzyl]-1-(2-fluorobenzyl)-3,7-dihydro-purine-2,6-dione

生成物 1

HCID 218918193-Cyclopropylmethyl-8-[4-(ethyl-amino)-benzyl]-1-(2-fluorobenzyl)-3,7-dihydro-purine-2,6-dione収率 62.6%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 8028Tetrahydrofuran溶媒

実験手順

To a suspension of 10% palladium on carbon (0.10 g) in tetrahydrofuran (50 mL) was added 3-cyclopropylmethyl-8-[4-aminobenzyl]-1-(2-fluorobenzyl)-3,7-dihydro-purine-2,6-dione (prepared as described in example 64, step 1) (0.21 g, 0.50 mmol) and acetaldehyde (72.6 μL, 1.3 mmol). The mixture was shaken under an atmosphere of hydrogen at 1 atmosphere pressure and ambient temperature for 3 days. The catalyst was removed by filtration through celite, washing the filter pad through with tetrahydrofuran and methanol. The combined filtrate was concentrated in vacuo and the residue purified by chromatography using silica eluted with 1:1 hexanes/ethyl acetate. Concentration of the appropriate fractions gave the product as a colorless solid (0.14 g, 62%). MS, m/z(M+H)=553.

後処理

  1. customThe catalyst was removed by filtration through celite
  2. washwashing the filter pad through with tetrahydrofuran and methanol
  3. concentrationThe combined filtrate was concentrated in vacuo
  4. customthe residue purified by chromatography
  5. washeluted with 1:1 hexanes/ethyl acetate

出典と根拠

ORDレコード
ord-d7b4319582c34293b3c5c8e64c59603d
出典データセット
uspto-grants-2006_11
特許番号
US07135475B2

反応ノート

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