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Diisopropylethylamine → (S)-tert-butyl 2-(4-chlorophenyl)-3-oxo-3-(4-(5-phenyl-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazin-1-yl)propyl(isopropyl)carbamate

HRID 387559
ノート
印刷プレビュー

反応式

HRID 387559 の反応式
CCN(C(C)C)C(C)C.Cl.Cl.[C:12]1([C:18]2[C:19]([N:27]3[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]3)=[C:20]3[CH:26]=[N:25][NH:24][C:21]3=[N:22][CH:23]=2)[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.[C:33]([O:37][C:38]([N:40]([CH:53]([CH3:55])[CH3:54])[CH2:41][C@H:42]([C:46]1[CH:51]=[CH:50][C:49]([Cl:52])=[CH:48][CH:47]=1)[C:43](O)=[O:44])=[O:39])([CH3:36])([CH3:35])[CH3:34]>C(Cl)Cl>[Cl:52][C:49]1[CH:50]=[CH:51][C:46]([C@H:42]([C:43](=[O:44])[N:30]2[CH2:29][CH2:28][N:27]([C:19]3[C:18]([C:12]4[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=4)=[CH:23][N:22]=[C:21]4[NH:24][N:25]=[CH:26][C:20]=34)[CH2:32][CH2:31]2)[CH2:41][N:40]([CH:53]([CH3:54])[CH3:55])[C:38](=[O:39])[O:37][C:33]([CH3:35])([CH3:34])[CH3:36])=[CH:47][CH:48]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 81531DiisopropylethylamineHCID 59564929(2S)-3-[tert-butoxycarbonyl(isopropyl)amino]-2-(4-chlorophenyl)propanoic acidHCID 68756523HCID 68756523、化合物

生成物 1

HCID 68764799(S)-tert-butyl 2-(4-chlorophenyl)-3-oxo-3-(4-(5-phenyl-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazin-1-yl)propyl(isopropyl)carbamate

試薬・触媒・溶媒 1

HCID 6344
Dichloromethane
溶媒

実験手順

DIEA (0.111 mL, 0.636 mmol) was added to a solution of 5-phenyl-4-(piperazin-1-yl)-1H-pyrazolo[3,4-b]pyridine dihydrochloride (0.070 g, 0.159 mmol), (S)-3-(tert-butoxycarbonyl(isopropyl)amino)-2-(4-chlorophenyl)propanoic acid (0.0543 g, 0.159 mmol, see Example B) and O-(benzotriazol-1-yl)-N,N,N,N′-tetramethyluronium tetrafluoroborate (“TBTU”) (0.0613 g, 0.191 mmol) in DCM (1 mL) and stirred at room temperature for 1 hour. The mixture was then directly loaded onto a silica column and purified by chromatography (hexane:ethyl acetate, 1:1) to give (S)-tert-butyl 2-(4-chlorophenyl)-3-oxo-3-(4-(5-phenyl-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazin-1-yl)propyl(isopropyl)carbamate as a solid. The solid was then dissolved in DCM (1 mL), and TFA (0.2 mL) was added. The mixture was stirred at room temperature for 1 hour and concentrated to dryness. The resulting residue was dissolved in DCM (0.5 mL), and HCl in ether (1 mL, 2N) was added. The resulting solid was collected by filtration to give (S)-2-(4-chlorophenyl)-3-(isopropylamino)-1-(4-(5-phenyl-1H-pyrazolo[3,4-b]pyridin-4-yl)piperazin-1-yl)propan-1-one dihydrochloride (0.044 g, 48%). MS ESI (+) m/z 503.4 detected.

後処理

  1. custompurified by chromatography (hexane:ethyl acetate, 1:1)

出典と根拠

ORDレコード
ord-89c10ab1466448a7ae8b761002c554e7
出典データセット
uspto-grants-2013_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08372842B2

反応ノート

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