Methyl Acrylate → methyl 3-(3-(6-(3-chlorobenzyl)-1-methyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyridin-7-yl)-1H-pyrazol-1-yl)propanoate

HRID 628415Notes

Reaction equation

HRID 628415 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:24]=[CH:25][CH:26]=1)[CH2:5][N:6]1[C:10]2[CH:11]=[CH:12][C:13]3[N:14]([C:15]([CH3:18])=[N:16][N:17]=3)[C:9]=2[CH:8]=[C:7]1[C:19]1[NH:23][N:22]=[CH:21][CH:20]=1.[C:27]([O:31][CH3:32])(=[O:30])[CH:28]=[CH2:29].N12CCCN=C1CCCCC2>C(#N)C>[Cl:1][C:2]1[CH:3]=[C:4]([CH:24]=[CH:25][CH:26]=1)[CH2:5][N:6]1[C:10]2[CH:11]=[CH:12][C:13]3[N:14]([C:15]([CH3:18])=[N:16][N:17]=3)[C:9]=2[CH:8]=[C:7]1[C:19]1[CH:20]=[CH:21][N:22]([CH2:29][CH2:28][C:27]([O:31][CH3:32])=[O:30])[N:23]=1

Participants

5

Reactant 3

HCID 7294Methyl AcrylateHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 118159473US9777003, Example 155

Product 1

HCID 118159747methyl 3-(3-(6-(3-chlorobenzyl)-1-methyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyridin-7-yl)-1H-pyrazol-1-yl)propanoate

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

6-(3-Chlorobenzyl)-1-methyl-7-(1H-pyrazol-5-yl)-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyridine (25 mg, 0.069 mmol, from Example 103, Step 5) in acetonitrile (0.90 mL) was treated with methyl acrylate (19 μL, 0.21 mmol, Aldrich) and 1,8-diazabicyclo[5.4.0]undec-7-ene (10. μL, 0.069 mmol, Aldrich) and stirred for 70 minutes. Purification via preparative HPLC-MS (Waters XBridge C18, eluting with a gradient of MeCN/H2O containing 0.15% NH4OH) followed by evaporation of eluent afforded methyl 3-(3-(6-(3-chlorobenzyl)-1-methyl-6H-pyrrolo[2,3-e][1,2,4]triazolo[4,3-a]pyridin-7-yl)-1H-pyrazol-1-yl)propanoate. The ester intermediate was dissolved in THF (0.45 mL) and was treated with 1.0 M NaOH in water (0.45 mL, 0.45 mmol). After 25 minutes, the reaction was acidified to pH 3-4 by the addition of 1 N HCl. Water was added (3 mL), and the precipitated product was isolated by filtration and air dried. Yield: (21 mg, 70%).

Workup

  1. customPurification via preparative HPLC-MS (Waters XBridge C18
  2. washeluting with a gradient of MeCN/H2O containing 0.15% NH4OH)
  3. customfollowed by evaporation of eluent

Sources & evidence

ORD record
ord-a7affa91840e4f528f83b2b340f61257
Source dataset
uspto-grants-2016_04
Patent number
US09309246B2

Reaction notes

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