6-Bromo-5-fluoropicolinic Acid → (+/-)-tert-butyl 5-(3-(6-bromo-5-fluoropicolinamido)pyridin-4-yl)-7-methyl-2-oxohexahydrobenzo[d]oxazole-3(2H)-carboxylate

HRID 2046888Notes

Reaction equation

HRID 2046888 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[CH:10]([CH3:25])[CH2:9]1.[Br:26][C:27]1[N:32]=[C:31]([C:33](O)=[O:34])[CH:30]=[CH:29][C:28]=1[F:36]>CCOC(C)=O>[Br:26][C:27]1[N:32]=[C:31]([C:33]([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[CH:10]([CH3:25])[CH2:9]2)=[O:34])[CH:30]=[CH:29][C:28]=1[F:36]

Participants

4

Reactant 2

HCID 534011946-Bromo-5-fluoropicolinic AcidHCID 68409051(+/-)-tert-butyl 5-(3-aminopyridin-4-yl)-7-methyl-2-oxohexahydrobenzo[d]oxazole-3(2H)-carboxylate

Product 1

HCID 72238215(+/-)-tert-butyl 5-(3-(6-bromo-5-fluoropicolinamido)pyridin-4-yl)-7-methyl-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)-7-methyl-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)-7-methyl-2-oxohexahydrobenzo[d]oxazole-3(2H)-carboxylate was obtained. LCMS (m/z): 549.2/551.2 (MH+), Rt=0.78 min.

Workup

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

Sources & evidence

ORD record
ord-1eb7e6ac7d32490e85f9a28b9dd926f2
Source dataset
uspto-grants-2013_11
Patent number
US08592455B2

Reaction notes

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