Trifluoroacetic acid → 1-Cyclopentyl-7-[4-(4-methylpiperazin-1-yl)phenylamino]-3,4-dihydro-pyrimido[4,5-d]pyrimidin-2(1H)-one

HRID 1783513ノート

反応式

HRID 1783513 の反応式
[CH:1]1([N:6]2[C:11]3=[N:12][C:13](S(C)=O)=[N:14][CH:15]=[C:10]3[CH2:9][NH:8][C:7]2=[O:19])[CH2:5][CH2:4][CH2:3][CH2:2]1.[NH2:20][C:21]1[CH:26]=[CH:25][C:24]([N:27]2[CH2:32][CH2:31][N:30]([CH3:33])[CH2:29][CH2:28]2)=[CH:23][CH:22]=1.FC(F)(F)C(O)=O>C(#N)C.C(OCC)(=O)C>[CH:1]1([N:6]2[C:11]3=[N:12][C:13]([NH:20][C:21]4[CH:22]=[CH:23][C:24]([N:27]5[CH2:28][CH2:29][N:30]([CH3:33])[CH2:31][CH2:32]5)=[CH:25][CH:26]=4)=[N:14][CH:15]=[C:10]3[CH2:9][NH:8][C:7]2=[O:19])[CH2:5][CH2:4][CH2:3][CH2:2]1

参加物

6

反応物 3

HCID 6422Trifluoroacetic acidHCID 7372534-(4-Methylpiperazin-1-yl)anilineHCID 688593421-cyclopentyl-7-methanesulfinyl-3,4-dihydro-pyrimido[4,5-d]pyrimidin-2(1H)-one

生成物 1

HCID 571665711-Cyclopentyl-7-[4-(4-methylpiperazin-1-yl)phenylamino]-3,4-dihydro-pyrimido[4,5-d]pyrimidin-2(1H)-one収率 80%

試薬・触媒・溶媒 2

HCID 6342Acetonitrile溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
85 °C

実験手順

To a solution of 2.0 g (7.1 mmol) of 1-cyclopentyl-7-methanesulfinyl-3,4-dihydro-pyrimido[4,5-d]pyrimidin-2(1H)-one and 2.7 g (14.3 mmol) of 1-(4-aminophenyl)-4-methylpiperazine in 32 mL of acetonitrile is added 2.75 mL (35.7 mmol) of trifluoroacetic acid. The mixture is heated at 85° C. overnight. The cooled reaction mixture is diluted with ethyl acetate and washed two times with saturated aqueous sodium bicarbonate solution and once with brine. The combined aqueous phase is back extracted with dichloromethane. The combined organic phase is dried over magnesium sulfate and concentrated. The dark solid residue is stirred for 2 hours in 30 mL of 1:1 dichloromethane/ethyl acetate, filtered, washed with ethyl acetate, and dried to give 2.3 g (80%) of the title compound: mp 236-239° C. (dec).

後処理

  1. customThe cooled reaction mixture
  2. washwashed two times with saturated aqueous sodium bicarbonate solution
  3. extractionThe combined aqueous phase is back extracted with dichloromethane
  4. dry with materialThe combined organic phase is dried over magnesium sulfate
  5. concentrationconcentrated
  6. filtrationfiltered
  7. washwashed with ethyl acetate
  8. customdried

出典と根拠

ORDレコード
ord-fe860b43c69544fc840aaf097b623f83
出典データセット
uspto-grants-2009_03
特許番号
US07501425B1

反応ノート

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