1-Methylpiperazine → HCID 18003344, compound

HRID 479102Notes

Reaction equation

HRID 479102 reaction equation
Cl[CH2:2][C:3]1[N:4]=[N:5][C:6]2[C:7](=[C:9]([NH2:14])[N:10]=[C:11]([NH2:13])[N:12]=2)[N:8]=1.[CH3:15][N:16]1[CH2:21][CH2:20][NH:19][CH2:18][CH2:17]1>>[CH3:15][N:16]1[CH2:21][CH2:20][N:19]([CH2:2][C:3]2[N:4]=[N:5][C:6]3[C:7](=[C:9]([NH2:14])[N:10]=[C:11]([NH2:13])[N:12]=3)[N:8]=2)[CH2:18][CH2:17]1

Participants

3

Reactant 2

HCID 531671-MethylpiperazineHCID 11390207HCID 11390207, compound

Product 1

HCID 18003344HCID 18003344, compound

Conditions

Temperature
80 °C

Procedure

A mixture of 3-Chloromethyl-pyrimido[5,4-e][1,2,4]triazine-5,7-diamine 3 (200 mg; 0.95 mmol) and N-methylpiperazine (2.00 mL) were heated to 80° C. in a sealed tube for 7 h. The mixture was then allowed to cool to room temperature and concentrated in vacuo. The crude product was purified by reverse phase HPLC (Rainin C18, 0% CH3CN to 30% CH3CN gradient, CH3CN/H2O, 0.1% TFA) and the bright yellow fractions containing the product were lyophilized after removal of CH3CN in vacuo to give 178 mg of yellow colored 3-(4-Methyl-piperazin-1-ylmethyl)-pyrimido[5,4-e][1,2,4]triazine-5,7-diamine as the trifluoroacetate salt.

Workup

  1. temperatureto cool to room temperature
  2. concentrationconcentrated in vacuo
  3. customThe crude product was purified by reverse phase HPLC (Rainin C18, 0% CH3CN to 30% CH3CN gradient, CH3CN/H2O, 0.1% TFA)
  4. additionthe bright yellow fractions containing the product
  5. customafter removal of CH3CN in vacuo

Sources & evidence

ORD record
ord-949f73ea6bb04945aac03ea1c78d615e
Source dataset
uspto-grants-2003_11
Patent number
US06642381B2

Reaction notes

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