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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 56846Generated: October 30, 2026

Benzoic acid, 4-amino-, 1,1-dimethylethyl ester → tert-Butyl 4-[(2-{4-[5-chloro-2-(difluoromethoxy)phenyl]-5-methoxy-2-oxopyridin-1(2H)-yl}propanoyl)amino]benzoate

https://huagongshe.com/reaction/56846

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoic acid, 4-amino-, 1,1-dimethylethyl esterHCID 233272—
Reactant2-{4-[5-Chloro-2-(difluoromethoxy)phenyl]-5-methoxy-2-oxopyridin-1(2H)-yl}propanoic acidHCID 117622703—
Producttert-Butyl 4-[(2-{4-[5-chloro-2-(difluoromethoxy)phenyl]-5-methoxy-2-oxopyridin-1(2H)-yl}propanoyl)amino]benzoateHCID 117622889—

Reaction Steps

220 mg of crude product of 2-{4-[5-chloro-2-(difluoromethoxy)phenyl]-5-methoxy-2-oxopyridin-1(2H)-yl}propanoic acid (racemate) and 89 mg (0.46 mmol, 1.1 eq.) of tert-butyl 4-aminobenzoate were reacted according to General Method 5A. Yield: 48 mg (21% of theory)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434690B2
Source datasetuspto-grants-2016_09
ORD IDord-7f2efeafcd614db697a1c2f666f0053d
Source noteuspto-grants-2016_09