Hydrochloric Acid → t-butyl 4-[7-(2-butynyl)-2-(1-ethoxycarbonylcyclopropyloxy)-1-methyl-6-oxo-6,7-dihydro-1H-purin-8-yl]piperazine-1-carboxylate

HRID 501378

反応式

HRID 501378 の反応式
[CH2:1]([N:5]1[C:13]2[C:12](=[O:14])[N:11]([CH3:15])[C:10](Cl)=[N:9][C:8]=2[N:7]=[C:6]1[N:17]1[CH2:22][CH2:21][N:20]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[CH2:19][CH2:18]1)[C:2]#[C:3][CH3:4].[OH:30][C:31]1([C:34]([O:36][CH2:37][CH3:38])=[O:35])[CH2:33][CH2:32]1.[H-].[Na+].Cl>CN1CCCC1=O>[CH2:1]([N:5]1[C:13]2[C:12](=[O:14])[N:11]([CH3:15])[C:10]([O:30][C:31]3([C:34]([O:36][CH2:37][CH3:38])=[O:35])[CH2:33][CH2:32]3)=[N:9][C:8]=2[N:7]=[C:6]1[N:17]1[CH2:22][CH2:21][N:20]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[CH2:19][CH2:18]1)[C:2]#[C:3][CH3:4]

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 2733706Ethyl 1-hydroxycyclopropane-1-carboxylateHCID 23070741t-butyl 4-(7-(2-butynyl)-2-chloro-1-methyl-6-oxo-6,7-dihydro-1H-purin-8-yl]piperazine-1-carboxylate

生成物 1

HCID 23070912t-butyl 4-[7-(2-butynyl)-2-(1-ethoxycarbonylcyclopropyloxy)-1-methyl-6-oxo-6,7-dihydro-1H-purin-8-yl]piperazine-1-carboxylate収率 257.7%

試薬・触媒・溶媒 1

HCID 13387N-methyl-2-pyrrolidone溶媒

実験手順

20 mg of t-butyl 4-[7-(2-butynyl)-2-chloro-1-methyl-6-oxo-6,7-dihydro-1H-purin-8-yl]piperazine-1-carboxylate and 20 mg of ethyl 1-hydroxycyclopropanecarboxylate were dissolved in 0.2 ml of N-methylpyrrolidone, and 10 mg of sodium hydride was added thereto. The mixture was stirred at room temperature overnight. 1N hydrochloric acid was added to the reaction solution, and the mixture was extracted with ethyl acetate. The organic layer was concentrated to give 63 mg of t-butyl 4-[7-(2-butynyl)-2-(1-ethoxycarbonylcyclopropyloxy)-1-methyl-6-oxo-6,7-dihydro-1H-purin-8-yl]piperazine-1-carboxylate. This compound was dissolved in a solution consisting of 0.4 ml of ethanol and 0.1 ml of a 5N aqueous sodium hydroxide solution, and the mixture was stirred at 50° C. overnight. 1N hydrochloric acid solution was added to the reaction solution, and the mixture was extracted with ethyl acetate. The organic layer was concentrated to give 22 mg of t-butyl 4-[7-(2-butynyl)-2-(1-carboxycyclopropyloxy)-1-methyl-6-oxo-6,7-dihydro-1H-purin-8-yl]piperazine-1-carboxylate. 11 mg of this compound was dissolved in trifluoroacetic acid, and the mixture was concentrated. The residue was purified by reverse-phase high performance liquid chromatography (using an acetonitrile-water mobile phase (containing 0.1% trifluoroacetic acid)) to give 1.64 mg of the title compound.

後処理

  1. extractionthe mixture was extracted with ethyl acetate
  2. concentrationThe organic layer was concentrated

出典と根拠

ORDレコード
ord-9c836b32659f43b3a75ec3e434124ea9
出典データセット
uspto-grants-2010_08
特許番号
US07772226B2

関連ノート

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