Tert-butyl 3-((3-(3-(imidazo[1,2-a]pyridine-3-carboxamido)-4-methylphenyl)-1,2,4-oxadiazol-5-yl)methyl)azetidine-1-carboxylate → N-(5-(5-(azetidin-3-ylmethyl)-1,2,4-oxadiazol-3-yl)-2-methylphenyl)imidazo[1,2-a]pyridine-3-carboxamide

HRID 405803Notes

Reaction equation

HRID 405803 reaction equation
[N:1]1[CH:2]=[C:3]([C:10]([NH:12][C:13]2[CH:14]=[C:15]([C:20]3[N:24]=[C:23]([CH2:25][CH:26]4[CH2:29][N:28](C(OC(C)(C)C)=O)[CH2:27]4)[O:22][N:21]=3)[CH:16]=[CH:17][C:18]=2[CH3:19])=[O:11])[N:4]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=12>C(O)(C(F)(F)F)=O>[NH:28]1[CH2:29][CH:26]([CH2:25][C:23]2[O:22][N:21]=[C:20]([C:15]3[CH:16]=[CH:17][C:18]([CH3:19])=[C:13]([NH:12][C:10]([C:3]4[N:4]5[CH:9]=[CH:8][CH:7]=[CH:6][C:5]5=[N:1][CH:2]=4)=[O:11])[CH:14]=3)[N:24]=2)[CH2:27]1

Participants

3

Reactant 1

HCID 71281398Tert-butyl 3-((3-(3-(imidazo[1,2-a]pyridine-3-carboxamido)-4-methylphenyl)-1,2,4-oxadiazol-5-yl)methyl)azetidine-1-carboxylate

Product 1

HCID 71281018N-(5-(5-(azetidin-3-ylmethyl)-1,2,4-oxadiazol-3-yl)-2-methylphenyl)imidazo[1,2-a]pyridine-3-carboxamide

Reagents, catalysts & solvents 1

HCID 6422Trifluoroacetic acidSolvent

Procedure

3-((3-(3-(Imidazo[1,2-a]pyridine-3-carboxamido)-4-methylphenyl)-1,2,4-oxadiazol-5-yl)methyl)azetidine-1-carboxylate (54) (29.3 mg, 0.06 mmol) was dissolved in TFA (0.5 mL) and stirred at room temperature for 10 minutes. Then TFA was removed under vacuum to yield crude N-(5-(5-(azetidin-3-ylmethyl)-1,2,4-oxadiazol-3-yl)-2-methylphenyl)imidazo[1,2-a]pyridine-3-carboxamide (55) which was used without further purification. MS m/z 389.2 (M+1)+.

Workup

  1. customThen TFA was removed under vacuum

Sources & evidence

ORD record
ord-5233fcbf0f674e8ebc1d3bc0b7ccf8f6
Source dataset
uspto-grants-2014_06
Patent number
US08754071B2

Reaction notes

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