Dichloromethane → 7-Fluoro-5-methyl-2-(4-methyl-3-oxopiperazin-1-yl)-6-phenyl-1,3-benzoxazole-4-carbonitrile

HRID 17474ノート

反応式

HRID 17474 の反応式
C(N(C(C)C)CC)(C)C.Cl.[CH3:11][N:12]1[CH2:17][CH2:16][NH:15][CH2:14][C:13]1=[O:18].ClCCl.Cl[C:23]1[O:24][C:25]2[C:26](=[C:28]([C:40]#[N:41])[C:29]([CH3:39])=[C:30]([C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)[C:31]=2[F:32])[N:27]=1>C(Cl)(Cl)Cl>[F:32][C:31]1[C:30]([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)=[C:29]([CH3:39])[C:28]([C:40]#[N:41])=[C:26]2[C:25]=1[O:24][C:23]([N:15]1[CH2:16][CH2:17][N:12]([CH3:11])[C:13](=[O:18])[CH2:14]1)=[N:27]2

参加物

6

反応物 4

HCID 6344DichloromethaneHCID 81531DiisopropylethylamineHCID 170607661-Methylpiperazin-2-one--hydrogen chloride (1/1)HCID 510414292-Chloro-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-carbonitrile

生成物 1

HCID 685845617-Fluoro-5-methyl-2-(4-methyl-3-oxopiperazin-1-yl)-6-phenyl-1,3-benzoxazole-4-carbonitrile収率 99.9%

試薬・触媒・溶媒 1

HCID 6212Chloroform溶媒

実験手順

Diisopropylethylamine (232 μl, 1.36 mmol) and 1-methylpiperazin-2-one hydrochloride (103 mg, 0-682 mmol) were added to a dichloromethane (6 ml) solution of 2-chloro-7-fluoro-5-methyl-6-phenyl-1,3-benzoxazole-4-cabonitrile (I-130) (163 mg, 0.569 mmol), followed by stirring at room temperature for 30 minutes. Chloroform (50 ml) was added to the reaction liquid, followed by washing with saturated brine (50 ml). After drying over anhydrous sodium sulfate and concentration under reduced pressure, the resulting residue was purified by silica gel column chromatography (eluent, chloroform:methanol=20:1) to obtain the entitled compound (207 mg, 99.9%) as a colorless solid.

後処理

  1. washby washing with saturated brine (50 ml)
  2. dry with materialAfter drying over anhydrous sodium sulfate and concentration under reduced pressure
  3. customthe resulting residue was purified by silica gel column chromatography (eluent, chloroform:methanol=20:1)

出典と根拠

ORDレコード
ord-8aee05eaa86143319375b494e6912907
出典データセット
uspto-grants-2010_06
特許番号
US07737166B2

反応ノート

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