6-Bromo-5-fluoropicolinic Acid → tert-butyl 5-(3-(6-bromo-5-fluoropicolinamido)pyridin-4-yl)-2-oxohexahydrobenzo[d]oxazole-3(2H)-carboxylate

HRID 1523529Notes

Reaction equation

HRID 1523529 reaction equation
[NH2:1][C:2]1[CH:3]=[N:4][CH:5]=[CH:6][C:7]=1[CH:8]1[CH2:24][CH:12]2[N:13]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[C:14](=[O:16])[O:15][CH:11]2[CH2:10][CH2:9]1.[Br:25][C:26]1[N:31]=[C:30]([C:32](O)=[O:33])[CH:29]=[CH:28][C:27]=1[F:35]>CCOC(C)=O>[Br:25][C:26]1[N:31]=[C:30]([C:32]([NH:1][C:2]2[CH:3]=[N:4][CH:5]=[CH:6][C:7]=2[CH:8]2[CH2:24][CH:12]3[N:13]([C:17]([O:19][C:20]([CH3:21])([CH3:23])[CH3:22])=[O:18])[C:14](=[O:16])[O:15][CH:11]3[CH2:10][CH2:9]2)=[O:33])[CH:29]=[CH:28][C:27]=1[F:35]

Participants

4

Reactant 2

HCID 534011946-Bromo-5-fluoropicolinic AcidHCID 59226567tert-butyl 5-(3-aminopyridin-4-yl)-2-oxohexahydrobenzo[d]oxazole-3(2H)-carboxylate

Product 1

HCID 59226599tert-butyl 5-(3-(6-bromo-5-fluoropicolinamido)pyridin-4-yl)-2-oxohexahydrobenzo[d]oxazole-3(2H)-carboxylate

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

Following Method 9, tert-butyl 5-(3-aminopyridin-4-yl)-2-oxohexahydrobenzo[d]oxazole-3(2H)-carboxylate and 6-bromo-5-fluoropicolinic acid were coupled and following addition of EtOAc and washing with H2O, NaCl(sat.) and drying over MgSO4, tert-butyl 5-(3-(6-bromo-5-fluoropicolinamido)pyridin-4-yl)-2-oxohexahydrobenzo[d]oxazole-3(2H)-carboxylate was obtained. LCMS (m/z): 537.1 (MH+); LCMS Rt=0.71 min.

Workup

  1. washwashing with H2O, NaCl(sat.)
  2. dry with materialdrying over MgSO4

Sources & evidence

ORD record
ord-a25c2d2757c84bfe8eab1344948f3bf7
Source dataset
uspto-grants-2015_07
Patent number
US09079889B2

Reaction notes

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