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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1354397Generated: October 31, 2026

Hydrochloric Acid → HCID 178465612, compound

https://huagongshe.com/reaction/1354397

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriethylamineHCID 8471—
ReactantEthanimidic acid, methyl ester, hydrochloride (1:1)HCID 10313100—
Reactant2-[[(1S)-2-Amino-1-phenylethyl]oxy]-4-chloro-5-fluorobenzonitrile (E)-butenedioateHCID 131726460—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventDiethyl EtherHCID 3283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178465612HCID 17846561299.4%

Reaction Steps

The title compound was prepared by treating the product of Example 1 step (c) (0.2 g) in dry THF (10 ml) with methyl acetimidate hydrochloride (75 mg) followed by triethylamine (0.1 ml) and stirring overnight. The reaction mixture was poured into water and extracted with ethyl acetate. The extract was evaporated and the residue purified by chromatography (silica, 2–20% 7M ammonia in methanol/dichloromethane as eluent) to give a glassy solid. The solid was dissolved in methanol (10 ml), treated with 1M HCl in ether (1 ml) then evaporated. The residue was triturated with ether to give the title compound as a cream solid (90 mg). M.p. 133–135° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07223794B2
Source datasetuspto-grants-2007_05
ORD IDord-74f489f7aaf84e4ca55147812efc8191
Source noteuspto-grants-2007_05