1-Methylpiperazine → (+/-)-3-(3-(4-methoxy-phenyl)-4-methyl-7-{3-[2-(4-methyl-piperazin-1-yl)-ethyl]-phenylamino}-2-oxo-3,4-dihydro-2H-pyrimido[4,5-d]pyrimidin-1-yl)-benzonitrile

HRID 1247647Notes

Reaction equation

HRID 1247647 reaction equation
[C:1]([C:3]1[CH:4]=[C:5]([N:9]2[C:14]3[N:15]=[C:16]([NH:19][C:20]4[CH:21]=[C:22]([CH2:26][CH2:27]OS(C)(=O)=O)[CH:23]=[CH:24][CH:25]=4)[N:17]=[CH:18][C:13]=3[CH:12]([CH3:33])[N:11]([C:34]3[CH:39]=[CH:38][C:37]([O:40][CH3:41])=[CH:36][CH:35]=3)[C:10]2=[O:42])[CH:6]=[CH:7][CH:8]=1)#[N:2].[CH3:43][N:44]1[CH2:49][CH2:48][NH:47][CH2:46][CH2:45]1>C(OCC)(=O)C>[CH3:41][O:40][C:37]1[CH:36]=[CH:35][C:34]([N:11]2[CH:12]([CH3:33])[C:13]3[C:14](=[N:15][C:16]([NH:19][C:20]4[CH:25]=[CH:24][CH:23]=[C:22]([CH2:26][CH2:27][N:47]5[CH2:48][CH2:49][N:44]([CH3:43])[CH2:45][CH2:46]5)[CH:21]=4)=[N:17][CH:18]=3)[N:9]([C:5]3[CH:4]=[C:3]([CH:8]=[CH:7][CH:6]=3)[C:1]#[N:2])[C:10]2=[O:42])=[CH:39][CH:38]=1

Participants

4

Reactant 2

HCID 531671-MethylpiperazineHCID 10325979(+/-)-Methanesulfonic acid (2-{3-[8-(3-cyano-phenyl)-6-(4-methoxy-phenyl)-5-methyl-7-oxo-5,6,7,8-tetrahydro-pyrimido[4,5-d]pyrimidin-2-ylamino]-phenyl}-ethyl)-ester

Product 1

HCID 10031292(+/-)-3-(3-(4-methoxy-phenyl)-4-methyl-7-{3-[2-(4-methyl-piperazin-1-yl)-ethyl]-phenylamino}-2-oxo-3,4-dihydro-2H-pyrimido[4,5-d]pyrimidin-1-yl)-benzonitrile

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
110 °C

Procedure

A mixture of (±)-methanesulfonic acid (2-{3-[8-(3-cyano-phenyl)-6-(4-methoxy-phenyl)-5-methyl-7-oxo-5,6,7,8-tetrahydro-pyrimido[4,5-d]pyrimidin-2-ylamino]-phenyl}-ethyl)-ester (0.10 g; 0.16 mmol) (from Example 5a supra) and 1-methylpiperazine (0.25 mL; 2.23 mmol) (Aldrich) and heated at 110° C. for 1 hour. Upon cooling, the mixture was diluted with ethyl acetate and washed with water and brine. The organic phase was dried over anhydrous sodium sulfate, filtered, and concentrated. The crude material was purified by flash chromatography (Biotage 12S; 100:0 to 40:60 ethyl acetate-methanol gradient) and then crystallized from ethyl acetate-hexanes to give (±)-3-(3-(4-methoxy-phenyl)-4-methyl-7-{3-[2-(4-methyl-piperazin-1-yl)-ethyl]-phenylamino}-2-oxo-3,4-dihydro-2H-pyrimido[4,5-d]pyrimidin-1-yl)-benzonitrile. (Yield 60.6 mg; 64.1%).

Workup

  1. temperatureUpon cooling
  2. washwashed with water and brine
  3. dry with materialThe organic phase was dried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude material was purified by flash chromatography (Biotage 12S; 100:0 to 40:60 ethyl acetate-methanol gradient)
  7. customcrystallized from ethyl acetate-hexanes

Sources & evidence

ORD record
ord-d75fa0c6f2b145bab9dadb185b2ce02b
Source dataset
uspto-grants-2006_10
Patent number
US07129351B2

Reaction notes

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