Formaldehyde → (1-Methyl-4-piperidyl)[6-[2-(4-cyano-phenyl)-2H-pyrazol-3-yl]-7-methyl-8-(3-trifluoromethyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-urea

HRID 1497813Notes

Reaction equation

HRID 1497813 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([N:9]2[C:13]([C:14]3[C:15]([CH3:43])=[C:16]([C:33]4[CH:38]=[CH:37][CH:36]=[C:35]([C:39]([F:42])([F:41])[F:40])[CH:34]=4)[C:17]4[N:18]([N:20]=[C:21]([NH:23][C:24]([NH:26]C5CCNCC5)=[O:25])[N:22]=4)[CH:19]=3)=[CH:12][CH:11]=[N:10]2)=[CH:5][CH:4]=1)#[N:2].C=O.C(O[BH-](O[C:56](=O)[CH3:57])OC(=O)C)(=O)C.[Na+]>C(Cl)Cl.CO>[CH3:13][N:9]1[CH2:57][CH2:56][CH:4]([N:23]([C:21]2[N:22]=[C:17]3[C:16]([C:33]4[CH:38]=[CH:37][CH:36]=[C:35]([C:39]([F:40])([F:41])[F:42])[CH:34]=4)=[C:15]([CH3:43])[C:14]([C:13]4[N:9]([C:6]5[CH:5]=[CH:4][C:3]([C:1]#[N:2])=[CH:8][CH:7]=5)[N:10]=[CH:11][CH:12]=4)=[CH:19][N:18]3[N:20]=2)[C:24]([NH2:26])=[O:25])[CH2:5][CH2:6]1

Participants

6

Reactant 3

HCID 712FormaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 730527101-[6-[2-(4-Cyano-phenyl)-2H-pyrazol-3-yl]-7-methyl-8-(3-trifluoromethyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-3-piperidin-4-yl-urea

Product 1

HCID 73052711(1-Methyl-4-piperidyl)[6-[2-(4-cyano-phenyl)-2H-pyrazol-3-yl]-7-methyl-8-(3-trifluoromethyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-ureaYield 70.4%

Reagents, catalysts & solvents 2

HCID 887MethanolCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of 1-[6-[2-(4-cyano-phenyl)-2H-pyrazol-3-yl]-7-methyl-8-(3-trifluoromethyl-phenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-3-piperidin-4-yl-urea (Ex. 50, 53 mg, 0.09 mmol) in DCM (2 mL) was added 37% aqueous formaldehyde solution (75 μL.) and 2 drops of MeOH, followed by sodium triacetoxyborohydride (160 mg, 0.75 mmol), and the solution was stirred at RT for 18 hrs. The reaction mixture was partitioned between DCM (15 ml) and aqueous 2 M Na2CO3, and the organic extract was dried (Na2SO4), filtered and concentrated in vacuo to give the title compound as a white solid (19 mg).

Workup

  1. customThe reaction mixture was partitioned between DCM (15 ml) and aqueous 2 M Na2CO3
  2. extractionthe organic extract
  3. dry with materialwas dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-5b95190cb5204a188c012d9da3bb21c3
Source dataset
uspto-grants-2015_12
Patent number
US09199984B2

Reaction notes

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