Butyl bromide → [5-(1-Butyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-[4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-amine

HRID 1971592Notes

Reaction equation

HRID 1971592 reaction equation
[NH:1]1[CH:5]=[C:4]([C:6]2[N:11]3[N:12]=[C:13]([NH:15][C:16]4[CH:21]=[CH:20][C:19]([O:22][CH2:23][CH2:24][N:25]5[CH2:29][CH2:28][CH2:27][CH2:26]5)=[CH:18][CH:17]=4)[N:14]=[C:10]3[CH:9]=[CH:8][CH:7]=2)[CH:3]=[N:2]1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:37][CH2:38][CH2:39][CH3:40]>CC(N(C)C)=O>[CH2:37]([N:2]1[CH:3]=[C:4]([C:6]2[N:11]3[N:12]=[C:13]([NH:15][C:16]4[CH:17]=[CH:18][C:19]([O:22][CH2:23][CH2:24][N:25]5[CH2:29][CH2:28][CH2:27][CH2:26]5)=[CH:20][CH:21]=4)[N:14]=[C:10]3[CH:9]=[CH:8][CH:7]=2)[CH:5]=[N:1]1)[CH2:38][CH2:39][CH3:40]

Participants

5

Reactant 3

HCID 8002Butyl bromideHCID 11430Potassium CarbonateHCID 136146545[5-(1H-Pyrazol-4-yl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-[4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-amine

Product 1

HCID 59589548[5-(1-Butyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-[4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-amine

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Procedure

To a stirred solution of [5-(1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-a]pyridin-2-yl]-[4-(2-pyrrolidin-1-yl-ethoxy)-phenyl]-amine (0.05 g, 0.128 mmol) in dimethylacetamide (1 ml) was added potassium carbonate (265 mg, 0.192 mmol) followed by 1-bromobutane (13 μl, 0.115 mmol). The mixture was stirred for 18 hours at room temperature, then filtered and concentrated in vacuo. The product was purified by preparatory HPLC to yield the desired product. LCMS: RT: 2.56 min, MI: 446, Method: 2; 1H NMR (DMSO, 300 MHz): 9.42 (s, 1H), 8.84 (s, 1H), 8.47 (s, 1H), 8.25 (s, 1H), 7.64 (d, 2H), 7.57 (d, 1H), 7.40 (dd, 2H), 6.95 (d, 2H), 4.26 (t, 2H), 4.09 (t, 2H), 2.96 (t, 2H), 2.72 (s, 4H), 1.88 (t, 2H), 1.83 (s, 4H), 1.30 (dd, 2H), 0.92 (t, 3H).

Workup

  1. filtrationfiltered
  2. concentrationconcentrated in vacuo
  3. customThe product was purified by preparatory HPLC

Sources & evidence

ORD record
ord-9feac88f9e9c417a9ffe7cc8fa151aca
Source dataset
uspto-grants-2013_04
Patent number
US08431596B2

Reaction notes

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