Benzyl 4-bromo-2-fluorobenzoate → 4-(4-Benzyloxycarbonyl-3-fluoro-phenoxy)-2,2-dimethyl-2,3-dihydro-benzofuran-6-carboxylic acid methyl ester
Reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:15]=[C:14]([O:16]C2C=CC(C(N3CCC3)=O)=CC=2)[C:8]2[CH2:9][C:10]([CH3:13])([CH3:12])[O:11][C:7]=2[CH:6]=1)=[O:4].[CH2:29]([O:36][C:37](=[O:46])[C:38]1[CH:43]=[CH:42][C:41](Br)=[CH:40][C:39]=1[F:45])[C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1.COC(C1C=C(O)C2CC(C)(C)OC=2C=1)=O>>[CH3:1][O:2][C:3]([C:5]1[CH:15]=[C:14]([O:16][C:41]2[CH:42]=[CH:43][C:38]([C:37]([O:36][CH2:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)=[O:46])=[C:39]([F:45])[CH:40]=2)[C:8]2[CH2:9][C:10]([CH3:13])([CH3:12])[O:11][C:7]=2[CH:6]=1)=[O:4]Participants
4
Reactant 3
Product 1
Procedure
The title compound was prepared in a similar manner as described for Intermediate 35b, from 4-bromo-2-fluoro-benzoic acid benzyl ester (65a) and 4-hydroxy-2,2-dimethyl-2,3-dihydro-benzofuran-6-carboxylic acid methyl ester (3e). 1H NMR (400 MHz, CDCl3) δ 7.96 (t, J=8.46 Hz, 1 H) 7.44-7.49 (m, 2 H) 7.32-7.43 (m, 3 H) 7.28 (s, 1 H) 7.25 (s, 1 H) 6.76 (dd, J=8.72, 2.40 Hz, 1 H) 6.68 (dd, J=111.75, 2.40 Hz, 1 H) 5.38 (s, 2 H) 3.88 (s, 3 H) 2.87 (s, 2 H) 1.48 (s, 6 H); LCMS for C26H23FO6 m/z 450.00 (M+H)+.
Sources & evidence
- ORD record
- ord-3885ca617569415e8366964519def0a5
- Source dataset
- uspto-grants-2010_11
- Patent number
- US07842713B2
Reaction notes
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