1-Benzoylpiperazine → 1-Benzoyl-4-[(4-fluoro-7-chloro-6-azaindol-3-yl)-oxoacetyl]piperazine

HRID 899357ノート

反応式

HRID 899357 の反応式
[Cl:1][C:2]1[N:3]=[CH:4][C:5]([F:16])=[C:6]2[C:10]=1[NH:9][CH:8]=[C:7]2[C:11](=[O:15])[C:12]([O-:14])=O.[K+].[C:18]([N:26]1[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]1)(=[O:25])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.CCOP(ON1N=NC2C=CC=CC=2C1=O)(OCC)=O>>[C:18]([N:26]1[CH2:31][CH2:30][N:29]([C:12](=[O:14])[C:11]([C:7]2[C:6]3[C:10](=[C:2]([Cl:1])[N:3]=[CH:4][C:5]=3[F:16])[NH:9][CH:8]=2)=[O:15])[CH2:28][CH2:27]1)(=[O:25])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

参加物

4

反応物 3

HCID 7626541-BenzoylpiperazineHCID 42939953-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-oneHCID 86587619Potassium(7-chloro-4-fluoro-6-azaindol-3-yl)oxoacetate

生成物 1

HCID 224762461-Benzoyl-4-[(4-fluoro-7-chloro-6-azaindol-3-yl)-oxoacetyl]piperazine

実験手順

Addition of precursor 2d to a solution of aluminum trichloride in dichloromethane stirring at ambient temperature followed 30 minutes later with chloromethyl or chloroethyl oxalate (according to the method described for precursor 3a) provides either the methyl or ethyl ester, respectively. Hydrolysis with KOH (as in the standard hydrolysis procedure described for precursor 4a) provided potassium (7-chloro-4-fluoro-6-azaindol-3-yl)oxoacetate. Potassium (7-chloro-4-fluoro-6-azaindol-3-yl)oxoacetate was then reacted with 1-benzoyl piperazine in the presence of DEPBT under the standard conditions (as described for precursor 5a) to provide 1-benzoyl-4-[(4-fluoro-7-chloro-6-azaindol-3-yl)-oxoacetyl]piperazine, precursor 5i. 1H NMR (500 MHz, CD3OD) δ 8.40 (s, 1H), 8.04 (s, 1H), 7.46 (bs, 5H), 3.80-3.50 (m, 8H); LC/MS (ES+) m/z (M+H)+ 415 observed; retention time 1.247 minutes; LC/MS method: YMC ODS-A C18 S7 3.0×50 mm column; Start % B=0, Final % B=100, Gradient time=2 minutes; Flow rate=5 mL/min; detector wavelength=220 nm.

出典と根拠

ORDレコード
ord-6893eace926f4bbfaeb70416c9acb21e
出典データセット
uspto-grants-2008_04
特許番号
US07354924B2

反応ノート

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