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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 910935Generated: November 1, 2026

Hydrochloric Acid → HCID 24826144, compound

https://huagongshe.com/reaction/910935

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTriethylamineHCID 8471—
ReactantEthyl chloroformateHCID 10928—
ReactantN,N-DimethylethylenediamineHCID 66053—
ReactantHCID 24826068HCID 24826068—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
ProductHCID 24826144HCID 2482614442.36%

Reaction Conditions

Temperature-5 °C

Reaction Steps

A 100 mL round-bottomed flask was charged with 3-(2-(4-methylthiazol-2-ylamino)pyridin-4-ylthio)benzoic acid (0.100 g, 0.2912 mmol) and THF (30 mL) and cooled to −5° C. Triethylamine (0.08840 g, 0.8736 mmol) and ethyl carbonochloridate (0.02784 mL, 0.2912 mmol) were added successively. The reaction mixture was stirred at −5° C. for 30 minutes. N1,N1-dimethylethane-1,2-diamine (0.07701 g, 0.8736 mmol) was added and stirred at −5° C. for 30 minutes and room temperature for 1 hour. An aqueous workup was done, the organic layer was dried and concentrated, and the residue was purified by silica gel chromatography to give the free base. The free base was dissolved in DCM, and 2M HCl was added. The solution was concentrated to provide N-(2-(dimethylamino)ethyl)-3-(2-(4-methylthiazol-2-ylamino)pyridin-4-ylthio)benzamide dihydrochloride (0.060 g, 42.36% yield). 1H NMR (d6-DMSO) δ 11.34 (bs, 1H), 9.97 (bs, 1H), 8.94 (t, 1H), 8.13 (m, 2H), 8.07 (d, 1H), 7.79 (d, 1H), 7.67 (t, 1H), 6.80 (s, 1H), 6.66 (s, 1H), 6.58 (s, 1H), 3.63 (m, 2H), 2.26 (m, 2H), 2.82 (d, 6H), 2.21 (s, 3H); Mass spectrum (apci) m/z=414.0 (M+H-2HCl).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08022222B2
Source datasetuspto-grants-2011_09
ORD IDord-81e86e19646846a998925e6cef99152e
Source noteuspto-grants-2011_09