2-(5-Methyl-2-phenyloxazol-4-yl)ethyl 4-methylbenzenesulfonate → 2-(Benzo[1,3]dioxol-5-yloxy)-2-methyl-3-{4-(2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]-phenyl}-propionic acid
Reaction equation
C([O:3][C:4](=[O:25])[C:5]([O:15][C:16]1[CH:24]=[CH:23][C:19]2[O:20][CH2:21][O:22][C:18]=2[CH:17]=1)([CH3:14])[CH2:6][C:7]1[CH:12]=[CH:11][C:10]([OH:13])=[CH:9][CH:8]=1)C.[C:26]1([C:32]2[O:33][C:34]([CH3:50])=[C:35]([CH2:37][CH2:38]OS(C3C=CC(C)=CC=3)(=O)=O)[N:36]=2)[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1>>[O:20]1[C:19]2[CH:23]=[CH:24][C:16]([O:15][C:5]([CH3:14])([CH2:6][C:7]3[CH:12]=[CH:11][C:10]([O:13][CH2:38][CH2:37][C:35]4[N:36]=[C:32]([C:26]5[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=5)[O:33][C:34]=4[CH3:50])=[CH:9][CH:8]=3)[C:4]([OH:3])=[O:25])=[CH:17][C:18]=2[O:22][CH2:21]1Participants
3
Reactant 2
Product 1
Procedure
Standard Procedure (B) was utilized to prepare the title compound from 2-(benzo[1,3]dioxol-5-yloxy)-3-(4-hydroxy-phenyl)-2-methyl-propionic acid ethyl ester and toluene-4-sulfonic acid 2-(2-phenyl-5-methyl-oxazol-4-yl)-ethyl ester. 1H NMR (400 MHz, CDCl3) δ 7.96-7.93 (m, 2H), 7.44-7.41 (m, 3H), 7.13 (d, 2H, J=8.79 Hz), 6.78 (d, 2H, J=8.79 Hz), 6.60 (d, 1H, J=8.79 Hz), 6.41 (d, 1H, J=2.44 Hz), 6.32 (dd, 1H, J=8.79 Hz, J=2.44 Hz), 5.88 (d, 2H, J=0.98 Hz), 4.17 (t, 2H, J=6.35 Hz), 3.15 (d, 1H, J=14.16 Hz), 3.04-3.00 (m, 3H), 2.38 (s, 3H), 1.30 (s, 3H); HRMS (ES+) m/z exact mass calcd for C29H28NO7 502.1866, found 502.1881.
Sources & evidence
- ORD record
- ord-176f2f69e4d6488ab687f97abcd82bd0
- Source dataset
- uspto-grants-2005_08
- Patent number
- US06930120B2
Reaction notes
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