Hydrazine hydrate (1:1) → HCID 22125106, compound

HRID 1858272Notes

Reaction equation

HRID 1858272 reaction equation
[NH:1]([C:8]1[N:13]=[C:12]2[N:14]([C:26]3[CH:31]=[CH:30][CH:29]=[C:28]([CH2:32][N:33]4C(=O)C5=CC=CC=C5C4=O)[CH:27]=3)[C:15](=[O:25])[N:16]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=3[Br:24])[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>[NH2:33][CH2:32][C:28]1[CH:27]=[C:26]([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[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=3[Br:24])[C:15]2=[O:25])[CH:31]=[CH:30][CH:29]=1

Participants

4

Reactant 2

HCID 24654Hydrazine hydrate (1:1)HCID 22125178HCID 22125178, compound

Product 1

HCID 22125106HCID 22125106, compoundYield 2.8%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A solution of 230 mg of 7-anilino-3-(2-bromophenyl)-3,4-dihydro-1-[3-(phthalimidomethyl)phenyl]pyrimido[4,5-d]pyrimidin-2(1H)-one in 10 ml of ethanol was treated with 0.5 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 to give 5 mg (2.8%) of 1-[3-(aminomethyl)phenyl]-7-anilino-3-(2-bromophenyl)-3,4-dihydropyrimido[4,5-d]pyrimidin-2(1H)-one as a white solid of melting point 121° 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

Sources & evidence

ORD record
ord-857f9094a4554194800e6e09e216f247
Source dataset
uspto-grants-2000_11
Patent number
US06150373

Reaction notes

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