Hydrazine hydrate (1:1) → HCID 22125180, compound

HRID 1858257Notes

Reaction equation

HRID 1858257 reaction equation
[NH:1]([C:8]1[N:13]=[C:12]2[N:14]([C:27]3[CH:32]=[CH:31][CH:30]=[C:29]([CH2:33][CH2:34][N:35]4C(=O)C5=CC=CC=C5C4=O)[CH:28]=3)[C:15](=[O:26])[N:16]([C:18]3[C:23]([CH3:24])=[CH:22][CH:21]=[CH:20][C:19]=3[CH3:25])[CH2:17][C:11]2=[CH:10][N:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O.NN>C(O)C>[NH2:35][CH2:34][CH2:33][C:29]1[CH:28]=[C:27]([N:14]2[C:12]3=[N:13][C:8]([NH:1][C:2]4[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=4)=[N:9][CH:10]=[C:11]3[CH2:17][N:16]([C:18]3[C:19]([CH3:25])=[CH:20][CH:21]=[CH:22][C:23]=3[CH3:24])[C:15]2=[O:26])[CH:32]=[CH:31][CH:30]=1

Participants

4

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 22125065HCID 22125065, compound

Product 1

HCID 22125180HCID 22125180, compoundYield 3%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A solution of 500 mg (0.86 mmol) of 7-anilino-3,4-dihydro-3-(2,6-dimethylphenyl)-1-[3-(2-phthalimidoethyl)phenyl]pyrimido[4,5-d]pyrimidin-2(1H)-one in 30 ml of ethanol was treated with 0.8 ml of hydrazine hydrate. After 18 hours the mixture was evaporated and the product purified by column chromatography on silica gel using dichloromethane/methanol/acetic acid/water (240:24:3:2) for the elution. Product-containing fractions were combined, evaporated and the residue evaporated with toluene. The residue was then dissolved in 50 ml of dichloromethane, washed with 50 ml of saturated aqueous sodium bicarbonate solution, dried over magnesium sulfate, filtered and evaporated. Trituration of the residue with hexane followed by filtration afforded 10 mg (3%) of 1-[3-(2-aminoethyl)phenyl]-7-anilino-3,4-dihydro-3-(2,6-dimethylphenyl)-pyrimido[4,5-d]pyrimidin-2(1H)-one as a white solid of melting point 128° C.

Workup

  1. customAfter 18 hours the mixture was evaporated
  2. customthe product purified by column chromatography on silica gel
  3. washfor the elution
  4. customevaporated
  5. customthe residue evaporated with toluene
  6. dissolutionThe residue was then dissolved in 50 ml of dichloromethane
  7. washwashed with 50 ml of saturated aqueous sodium bicarbonate solution
  8. dry with materialdried over magnesium sulfate
  9. filtrationfiltered
  10. customevaporated
  11. filtrationTrituration of the residue with hexane followed by filtration

Sources & evidence

ORD record
ord-fa8994e5326c4f2e9116348d52fefd81
Source dataset
uspto-grants-2000_11
Patent number
US06150373

Reaction notes

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