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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 553686Generated: October 30, 2026

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

https://huagongshe.com/reaction/553686

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 4-(4-bromophenyl)butanoateHCID 12870375—
Reactant{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 esterHCID 67350448—
CatalystHCID 178418476HCID 178418476—
Product4-(4'-{4-[1-(2-Chloro-phenyl)-ethoxycarbonylamino]-3-methyl-isoxazol-5-yl}-biphenyl-4-yl)-butyric acid ethyl esterHCID 67350829—

Reaction Steps

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, 4-(4-bromo-phenyl)-butyric acid ethyl ester, and bis(triphenylphosphine)palladium(II) dichloride were reacted to provide 4-(4′-{4-[1-(2-Chloro-phenyl)-ethoxycarbonylamino]-3-methyl-isoxazol-5-yl}-biphenyl-4-yl)-butyric acid ethyl ester, which was hydrolyzed to the acid as described in Example 17, Step 3.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08048902B2
Source datasetuspto-grants-2011_11
ORD IDord-943be1c6e4af40cba54760e7adad9c22
Source noteuspto-grants-2011_11