Ethyl 2-(4-bromophenyl)-2-methylpropanoate → 2-(4'-{4-[1-(2-Chloro-phenyl)-ethoxycarbonylamino]-3-methyl-isoxazol-5-yl}-biphenyl-4-yl)-2-methyl-propionic acid ethyl ester

HRID 2092429Notes

Reaction equation

HRID 2092429 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH:8]([O:10][C:11](=[O:34])[NH:12][C:13]1[C:14]([CH3:33])=[N:15][O:16][C:17]=1[C:18]1[CH:23]=[CH:22][C:21](B2OC(C)(C)C(C)(C)O2)=[CH:20][CH:19]=1)[CH3:9].[CH2:35]([O:37][C:38](=[O:49])[C:39]([C:42]1[CH:47]=[CH:46][C:45](Br)=[CH:44][CH:43]=1)([CH3:41])[CH3:40])[CH3:36]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH2:35]([O:37][C:38](=[O:49])[C:39]([C:42]1[CH:47]=[CH:46][C:45]([C:21]2[CH:22]=[CH:23][C:18]([C:17]3[O:16][N:15]=[C:14]([CH3:33])[C:13]=3[NH:12][C:11]([O:10][CH:8]([C:3]3[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=3[Cl:1])[CH3:9])=[O:34])=[CH:19][CH:20]=2)=[CH:44][CH:43]=1)([CH3:41])[CH3:40])[CH3:36]

Participants

4

Procedure

Following the procedure described in Example 17, Step 2, {3-methyl-5-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-isoxazol-4-yl}-carbamic acid 1-(2-chloro-phenyl)-ethyl ester, 2-(4-bromo-phenyl)-2-methyl-propionic acid ethyl ester, and bis(triphenylphosphine)palladium(II) dichloride were reacted to provide 2-(4′-{4-[1-(2-chloro-phenyl)-ethoxycarbonylamino]-3-methyl-isoxazol-5-yl}-biphenyl-4-yl)-2-methyl-propionic acid ethyl ester; further purification by preparative HPLC was required. The ester was hydrolyzed to the acid as described in Example 17, Step 3; purification by preparative HPLC was utilized.

Workup

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Sources & evidence

ORD record
ord-cd361951520743e89981bf77e317bb3d
Source dataset
uspto-grants-2013_05
Patent number
US08440707B2

Reaction notes

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