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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 494708Generated: October 30, 2026

Water → HCID 21111552, compound

https://huagongshe.com/reaction/494708

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSulfuric AcidHCID 1118—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 58886660HCID 58886660—
SolventEthyl AcetateHCID 8857—
ProductHCID 21111552HCID 21111552—

Reaction Steps

4-(4-Bromo-2-chlorophenylamino)-5-chloro-6-(2-oxopropylamino)-nicotinic acid tert-butyl ester (0.075 g, 0.15 mmol) was dissolved into concentrated H2SO4 (0.50 mL). After ten minutes, ice and water were and the mixture was stirred for ten minutes. The mixture was diluted with EtOAc, neutralized with 1 M NaOH, washed with brine, dried over Na2SO4 and concentrated to provide the desired product as an off-white solid. MS APCI (+) m/z 416, 418 (M+, Cl, Br pattern) detected.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07538120B2
Source datasetuspto-grants-2009_05
ORD IDord-e63feb10c38c4d71a78b30ed77480042
Source noteuspto-grants-2009_05