Triethylamine → HCID 136366301, compound

HRID 1698688Notes

Reaction equation

HRID 1698688 reaction equation
[NH:1]([C:3]1[N:8]=[CH:7][CH:6]=[CH:5][N:4]=1)[NH2:2].C(N(CC)CC)C.C[O:17][C:18](=O)[N:19]=[C:20](SC)[C:21]([C:35]1[CH:36]=[C:37]([O:46][CH3:47])[C:38]2[O:43][CH2:42][O:41][CH2:40][C:39]=2[C:44]=1[F:45])=[N:22][C:23]1[CH:28]=[CH:27][C:26]([C:29]2[N:33]=[C:32]([CH3:34])[O:31][N:30]=2)=[CH:25][CH:24]=1>CN(C=O)C>[F:45][C:44]1[C:39]2[CH2:40][O:41][CH2:42][O:43][C:38]=2[C:37]([O:46][CH3:47])=[CH:36][C:35]=1[CH:21]([NH:22][C:23]1[CH:24]=[CH:25][C:26]([C:29]2[N:33]=[C:32]([CH3:34])[O:31][N:30]=2)=[CH:27][CH:28]=1)[C:20]1[NH:19][C:18](=[O:17])[N:1]([C:3]2[N:8]=[CH:7][CH:6]=[CH:5][N:4]=2)[N:2]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 3465582-HydrazinylpyrimidineHCID 72312737HCID 72312737, compound

Product 1

HCID 136366301HCID 136366301, compoundYield 72.9%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
85 °C

Procedure

After adding 21 mg of 2-hydrazinopyrimidine and 50 μl of triethylamine to a solution of 105 mg of {2-(5-fluoro-8-methoxy-4H-benzo[1,3]dioxin-6-yl)-2-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylimino]-1-methylsulfanylethylidene}carbamic acid methyl ester in 2 ml of DMF, the mixture was stirred overnight at 85° C. under a nitrogen atmosphere. The reaction mixture was concentrated, and the residue was dissolved in 3 ml of methanol and 0.3 ml of acetic acid. After adding 100 mg of sodium cyanotrihydroborate to the reaction mixture, the mixture was stirred at room temperature for 1 hour. Water was added to the reaction mixture and extraction was performed with ethyl acetate. The organic layer was dried over anhydrous magnesium sulfate. The desiccating agent was filtered off and the filtrate was concentrated under reduced pressure. The residue was purified by NAM silica gel column chromatography (methanol-ethyl acetate) to give 5-{(5-fluoro-8-methoxy-4H-benzo[1,3]dioxin-6-yl)-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]methyl}-2-pyrimidin-2-yl-2,4-dihydro-[1,2,4]triazol-3-one (74 mg) as a light brown solid.

Workup

  1. concentrationThe reaction mixture was concentrated
  2. dissolutionthe residue was dissolved in 3 ml of methanol
  3. additionAfter adding 100 mg of sodium cyanotrihydroborate to the reaction mixture
  4. stirringthe mixture was stirred at room temperature for 1 hour
  5. additionWater was added to the reaction mixture and extraction
  6. dry with materialThe organic layer was dried over anhydrous magnesium sulfate
  7. filtrationThe desiccating agent was filtered off
  8. concentrationthe filtrate was concentrated under reduced pressure
  9. customThe residue was purified by NAM silica gel column chromatography (methanol-ethyl acetate)

Sources & evidence

ORD record
ord-bc6a5db64c78404fa06f81886152bf02
Source dataset
uspto-grants-2012_04
Patent number
US08163787B2

Reaction notes

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