Ethyl 5-(tributylstannyl)-1,2-oxazole-3-carboxylate → Ethyl 5-{2-fluoro-4-[(5R)-2-oxo-5-(1H-1,2,3-triazol-1-ylmethyl)-1,3-oxazolidin-3-yl]phenyl}isoxazole-3-carboxylate

HRID 456786Notes

Reaction equation

HRID 456786 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([N:9]2[CH2:13][C@H:12]([CH2:14][N:15]3[CH:19]=[CH:18][N:17]=[N:16]3)[O:11][C:10]2=[O:20])[CH:5]=[CH:6][C:7]=1I.C([Sn](CCCC)(CCCC)[C:26]1[O:30][N:29]=[C:28]([C:31]([O:33][CH2:34][CH3:35])=[O:32])[CH:27]=1)CCC>>[F:1][C:2]1[CH:3]=[C:4]([N:9]2[CH2:13][C@H:12]([CH2:14][N:15]3[CH:19]=[CH:18][N:17]=[N:16]3)[O:11][C:10]2=[O:20])[CH:5]=[CH:6][C:7]=1[C:26]1[O:30][N:29]=[C:28]([C:31]([O:33][CH2:34][CH3:35])=[O:32])[CH:27]=1

Participants

3

Reactant 2

HCID 2763256Ethyl 5-(tributylstannyl)-1,2-oxazole-3-carboxylateHCID 11257720(R)-5-((1H-1,2,3-Triazol-1-yl)methyl)-3-(3-fluoro-4-iodophenyl)oxazolidin-2-one2×

Product 1

HCID 10386303Ethyl 5-{2-fluoro-4-[(5R)-2-oxo-5-(1H-1,2,3-triazol-1-ylmethyl)-1,3-oxazolidin-3-yl]phenyl}isoxazole-3-carboxylate

Procedure

The procedure is identical to that used in Example 1 except (5R)-3-(3-fluoro-4-iodophenyl)-5-(1H-1,2,3-triazol-1-ylmethyl)-1,3-oxazolidin-2-one (Intermediate 6, 582 mg, 1.50 mmol) and ethyl 5-(tributylstannyl)isoxazole-3-carboxylate (Sakamoto, T. et al., Tetrahedron, 1991, 47, 5111–5118); 806 mg, 1.87 mmol) were used as starting materials. The crude product was purified by chromatography on silica gel using EtOAc, followed by recrystallization from acetone/hexanes to give 175 mg of the title product.

Workup

  1. customThe crude product was purified by chromatography on silica gel
  2. customfollowed by recrystallization from acetone/hexanes

Sources & evidence

ORD record
ord-a193f79806a046b7a47dae5da4fee210
Source dataset
uspto-grants-2007_03
Patent number
US07186738B2

Reaction notes

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