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Triethylamine → 2-Cyclopropyl-7-[(3S)-3-(dimethylamino)pyrrolidin-1-yl]-6-(2-methoxy-1,3-thiazole-4-yl)-5-methyl-1,3-benzoxazole-4-carbonitrile

HRID 17457
ノート
印刷プレビュー

反応式

HRID 17457 の反応式
[CH:1]1([C:4]2[O:5][C:6]3[C:7](=[C:9]([C:22]#[N:23])[C:10]([CH3:21])=[C:11]([C:14]4[N:15]=[C:16]([O:19][CH3:20])[S:17][CH:18]=4)[C:12]=3F)[N:8]=2)[CH2:3][CH2:2]1.C(N(CC)CC)C.[CH3:31][N:32]([CH3:38])[C@H:33]1[CH2:37][CH2:36][NH:35][CH2:34]1.C(=O)([O-])O.[Na+]>CS(C)=O.C(OCC)(=O)C>[CH:1]1([C:4]2[O:5][C:6]3[C:7](=[C:9]([C:22]#[N:23])[C:10]([CH3:21])=[C:11]([C:14]4[N:15]=[C:16]([O:19][CH3:20])[S:17][CH:18]=4)[C:12]=3[N:35]3[CH2:36][CH2:37][C@H:33]([N:32]([CH3:38])[CH3:31])[CH2:34]3)[N:8]=2)[CH2:3][CH2:2]1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 7019156(3S)-(-)-3-(Dimethylamino)pyrrolidineHCID 68584412HCID 68584412、化合物

生成物 1

HCID 685874672-Cyclopropyl-7-[(3S)-3-(dimethylamino)pyrrolidin-1-yl]-6-(2-methoxy-1,3-thiazole-4-yl)-5-methyl-1,3-benzoxazole-4-carbonitrile収率 11.1%

試薬・触媒・溶媒 2

HCID 679
Dimethyl Sulfoxide
溶媒
HCID 8857Ethyl Acetate溶媒

反応条件

温度
90 °C

実験手順

2-Cyclopropyl-7-fluoro-6-(2-methoxy-1,3-thiazol-4-yl)-5-methyl-1,3-benzoxazole-4-carbonitrile (I-179) (120 mg, 0.36 mmol) was dissolved in dimethyl sulfoxide (2.4 ml), then at room temperature, triethylamine (76 μl, 0.55 mmol) and (3S)-3-(dimethylamino)pyrrolidine (56 μl, 0.44 mmol) were added. The solution was stirred under nitrogen atmosphere at 90° C. for 18 hours, then cooled to room temperature. This was fractionated with ethyl acetate and an aqueous saturated sodium hydrogencarbonate solution. The aqueous layer was further extracted twice with ethyl acetate. The organic layers were combined, washed with saturated brine, and dried over anhydrous sodium sulfate. The insoluble matter was separated by filtration, then the solvent was evaporated away, and the resulting residue was purified by preparative TLC, in which, as the mobile layer, chloroform:methanol=9:1 was first used and then chloroform:7 N ammonia-containing methanol solution=97:3 was used, thereby obtaining a roughly-purified product (17 mg). This was washed with diisopropyl ether to obtain the entitled compound (6.5 mg, 4.2%) as a white solid.

後処理

  1. temperaturecooled to room temperature
  2. extractionThe aqueous layer was further extracted twice with ethyl acetate
  3. washwashed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customThe insoluble matter was separated by filtration
  6. customthe solvent was evaporated away
  7. customthe resulting residue was purified by preparative TLC, in which, as the mobile layer, chloroform
  8. additionchloroform:7 N ammonia-containing methanol solution=97:3

出典と根拠

ORDレコード
ord-9f05eac1239d4224af3fdd7f9f605403
出典データセット
uspto-grants-2010_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07737166B2

反応ノート

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