3-Thiophenecarboxylic acid, ethyl ester → 8-Chloro-3-pentyl-1-{4-[5-(3-thienyl)-1,2,4-oxadiazol-3-yl]butyl}-3,7-dihydro-1H-purine-2,6-dione

HRID 1097695ノート

反応式

HRID 1097695 の反応式
[Cl:1][C:2]1[NH:10][C:9]2[C:8](=[O:11])[N:7]([CH2:12][CH2:13][CH2:14][CH2:15]/[C:16](=[N:19]/[H])/[NH:17][OH:18])[C:6](=[O:21])[N:5]([CH2:22][CH2:23][CH2:24][CH2:25][CH3:26])[C:4]=2[N:3]=1.CC[O-].[Na+].[S:31]1[CH:35]=[CH:34][C:33]([C:36](OCC)=O)=[CH:32]1>CCO>[Cl:1][C:2]1[NH:10][C:9]2[C:8](=[O:11])[N:7]([CH2:12][CH2:13][CH2:14][CH2:15][C:16]3[N:19]=[C:36]([C:33]4[CH:34]=[CH:35][S:31][CH:32]=4)[O:18][N:17]=3)[C:6](=[O:21])[N:5]([CH2:22][CH2:23][CH2:24][CH2:25][CH3:26])[C:4]=2[N:3]=1

参加物

5

反応物 3

HCID 798243-Thiophenecarboxylic acid, ethyl esterHCID 2723922Sodium ethoxideHCID 178506473HCID 178506473、化合物

生成物 1

HCID 593956078-Chloro-3-pentyl-1-{4-[5-(3-thienyl)-1,2,4-oxadiazol-3-yl]butyl}-3,7-dihydro-1H-purine-2,6-dione

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒2 回

反応条件

温度
150 °C

実験手順

A solution of (1Z)-5-(8-chloro-2,6-dioxo-3-pentyl-2,3,6,7-tetrahydro-1H-purin-1-yl)-N-hydroxypentanimidamide (50 mg, 0.13 mmol) in EtOH (1 ml) was treated with a 21% solution of NaOEt in EtOH (55 μl, 0.21 mmol) and ethyl 3-thiophenecarboxylate (18 μl, 0.13 mmol). The mixture was heated in the microwave at 150° C. for 10 min. After cooling, the reaction was partitioned between 2M HCl (aq) and EtOAc. The organic layer was separated and the aqueous extracted again with EtOAc. The combined extracts were concentrated and purified by the MDAP. The title compound was obtained as an off-white solid (20 mg, 32%).

後処理

  1. temperatureAfter cooling
  2. customthe reaction was partitioned between 2M HCl (aq) and EtOAc
  3. customThe organic layer was separated
  4. extractionthe aqueous extracted again with EtOAc
  5. concentrationThe combined extracts were concentrated
  6. custompurified by the MDAP

出典と根拠

ORDレコード
ord-79c4f2cb49bf45c89429cd0927aaf578
出典データセット
uspto-grants-2012_03
特許番号
US08143264B2

反応ノート

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