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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 912976Generated: October 30, 2026

Hydrochloric Acid → HCID 178461550, compound

https://huagongshe.com/reaction/912976

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 11519896HCID 11519896—
SolventTetrahydrofuranHCID 8028—
ProductHCID 178461550HCID 178461550—

Reaction Conditions

Temperature50 °C

Reaction Steps

A mixture of 5-chloro-6-{(3R)-3-methyl-4-[6-trifluoromethyl-4-(3,4,5-trifluoro-phenyl)-1H-benzoimidazol-2-yl]-piperazin-1-yl}-nicotinic acid methyl ester (58 mg, 0.1 mmol, Example 178c) and 1N NaOH (0.11 mL) in THF (1 mL) was stirred at 50° C. for 16 h. 1N HCl (0.11 mL) was added and the mixture was extracted with EtOAc (2×20 mL). The combined organic extracts were washed with brine (5 mL), dried over Na2SO4 and filtered. The filtrate was evaporated in vacuo and the residue was purified by silica gel column chromatography, eluting with 10% MeOH/EtOAc to give the title compound as a white amorphous solid. MS (ESI, pos. ion) m/e: 570 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08026241B2
Source datasetuspto-grants-2011_09
ORD IDord-06b73f4c529f4f5e8ff6aa8ec1bf2599
Source noteuspto-grants-2011_09