4-[4-[[4-Amino-5-(3-fluorobenzoyl)-2-thiazolyl]amino]phenyl]-1-piperazinecarboxylic acid, 1,1-dimethylethyl ester → [4-Amino-2-[[4-(1-piperazinyl)phenyl]amino]-5-thiazolyl](3-fluorophenyl)methanone

HRID 353740

反応式

HRID 353740 の反応式
[NH2:1][C:2]1[N:3]=[C:4]([NH:16][C:17]2[CH:22]=[CH:21][C:20]([N:23]3[CH2:28][CH2:27][N:26](C(OC(C)(C)C)=O)[CH2:25][CH2:24]3)=[CH:19][CH:18]=2)[S:5][C:6]=1[C:7](=[O:15])[C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([F:14])[CH:9]=1.C(O)(C(F)(F)F)=O.C(Cl)Cl>>[NH2:1][C:2]1[N:3]=[C:4]([NH:16][C:17]2[CH:18]=[CH:19][C:20]([N:23]3[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]3)=[CH:21][CH:22]=2)[S:5][C:6]=1[C:7]([C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([F:14])[CH:9]=1)=[O:15]

参加物

3

反応物 2

HCID 101176544-[4-[[4-Amino-5-(3-fluorobenzoyl)-2-thiazolyl]amino]phenyl]-1-piperazinecarboxylic acid, 1,1-dimethylethyl esterHCID 21863450Trifluoroacetic acid methylene chloride

生成物 1

HCID 9800951[4-Amino-2-[[4-(1-piperazinyl)phenyl]amino]-5-thiazolyl](3-fluorophenyl)methanone収率 100%

実験手順

A mixture of 4-[4-[[4-amino-5-(3-fluorobenzoyl)-2-thiazolyl]amino]phenyl]-1-piperazinecarboxylic acid, 1, 1-dimethylethyl ester (75 mg, 0. 15 mmol) (from Step A above) and a solution of TFA/CH2Cl2 (1:1; 1.5 mL) was gently shaken for 1.5 h. The solution was evaporated in vacuo. To the residue was added resin-bound N,N-diisopropylethylamine (2.5 g, loading capacity: 3.8 mmol/g from Argonaut, Inc.) and CH2Cl2 (15 mL). After shaking overnight, the mixture was filtered and washed successively with CH3OH and CH2Cl2. The solvent was evaporated in vacuo and the residue was triturated by diethyl ether/hexanes (1/9) to afford [4-amino-2-[[4-(1-piperazinyl)phenyl]amino]-5-thiazolyl](3-fluorophenyl)methanone (60 mg, 100%).

後処理

  1. customThe solution was evaporated in vacuo
  2. additionTo the residue was added resin-bound N,N-diisopropylethylamine (2.5 g, loading capacity: 3.8 mmol/g from Argonaut, Inc.) and CH2Cl2 (15 mL)
  3. filtrationthe mixture was filtered
  4. washwashed successively with CH3OH and CH2Cl2
  5. customThe solvent was evaporated in vacuo
  6. customthe residue was triturated by diethyl ether/hexanes (1/9)

出典と根拠

ORDレコード
ord-90130442f67846019e36d9228627eb94
出典データセット
uspto-grants-2004_06
特許番号
US06756374B2

関連ノート

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