Diisopropylethylamine → (+/-)-1-[3-(Benzhydrylidene-amino)-4-cyano-benzyl]-4-(6-chloro-benzo[b]thiophene-2-sulfonyl)-6-oxo-piperazine-2-carboxylic acid methyl ester

HRID 1432942ノート

反応式

HRID 1432942 の反応式
[CH3:1][O:2][C:3]([CH:5]1[CH2:10][NH:9][CH2:8][C:7](=[O:11])[N:6]1[CH2:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]#[N:20])=[C:15]([N:21]=[C:22]([C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[CH:14]=1)=[O:4].CCN(C(C)C)C(C)C.[Cl:44][C:45]1[CH:46]=[CH:47][C:48]2[CH:52]=[C:51]([S:53](Cl)(=[O:55])=[O:54])[S:50][C:49]=2[CH:57]=1>C(Cl)Cl>[CH3:1][O:2][C:3]([CH:5]1[CH2:10][N:9]([S:53]([C:51]2[S:50][C:49]3[CH:57]=[C:45]([Cl:44])[CH:46]=[CH:47][C:48]=3[CH:52]=2)(=[O:55])=[O:54])[CH2:8][C:7](=[O:11])[N:6]1[CH2:12][C:13]1[CH:18]=[CH:17][C:16]([C:19]#[N:20])=[C:15]([N:21]=[C:22]([C:23]2[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=2)[C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)[CH:14]=1)=[O:4]

参加物

5

反応物 3

HCID 81531DiisopropylethylamineHCID 151586416-Chlorobenzo[b]thiophene-2-sulfonyl chlorideHCID 54153171(+/-)-1-[3-(Benzhydrylidene-amino)-4-cyano-benzyl]-6-oxo-piperazine-2-carboxylic acid methyl ester

生成物 1

HCID 54128933(+/-)-1-[3-(Benzhydrylidene-amino)-4-cyano-benzyl]-4-(6-chloro-benzo[b]thiophene-2-sulfonyl)-6-oxo-piperazine-2-carboxylic acid methyl ester収率 73.2%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

反応条件

温度
0 °C

実験手順

A solution containing (±)-1-[3-(benzhydrylidene-amino)-4-cyano-benzyl]-6-oxo-piperazine-2-carboxylic acid methyl ester (55 mg, 0.12 mmol) in CH2Cl2 (1 mL) is cooled to 0° C. DIPEA (24 mg, 0.18 mmol) is then added followed by the addition of 6-chloro-benzo[b]thiophene-2-sulfonyl chloride (32 mg, 0.12 mmol), EXAMPLE 1. The reaction mixture is warmed to ambient temperature. After 16 h, the reaction mixture is absorbed directly onto silica gel and chromatographed (CH2Cl2 to 2% MeOH/CH2Cl2) to provide 60 mg (73%) of the title compound. 1H NMR (300 MHz, CDCl3) δ2.77 (dd, J=12.3, 3.4 Hz, 1H), 3.50-3.72 (m, 3H), 3.79 (s, 3H), 4.15 (dd, J=12.3, 1.4 Hz, 1H), 4.24 (d, J=16.9 Hz, 1H), 5.41 (d, J=15.3 Hz, 1H), 6.50 (s, 1H), 6.76 (dd, J=7.9, 1.4 Hz, 1H), 7.11-7.86 (m, 15H) ppm; MS (ISP loop): m/z 683 (M+H).

後処理

  1. temperatureThe reaction mixture is warmed to ambient temperature
  2. customthe reaction mixture is absorbed directly onto silica gel
  3. customchromatographed (CH2Cl2 to 2% MeOH/CH2Cl2)

出典と根拠

ORDレコード
ord-e9f546057c7043dd956fb42a25d02bef
出典データセット
uspto-grants-2009_11
特許番号
US07612075B2

反応ノート

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