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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2424633Generated: October 31, 2026

Pyridine → HCID 59532398, compound

https://huagongshe.com/reaction/2424633

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2-Chloro-5-pyridinesulfonyl chlorideHCID 2792792—
Reactant1,1-Dimethylethyl (2S)-4-[(4-aminophenyl)methyl]-2-methyl-1-piperazinecarboxylateHCID 59262217—
SolventDichloromethaneHCID 6344—
ProductHCID 59532398HCID 5953239866%

Reaction Steps

D2 (500 mg, 1.64 mmol) and pyridine (1.5 mL) were combined in DCM (5 mL). 2-chloro-pyridine-5-sulfonylchloride (314 mg, 1.48 mmol) in DCM (5 mL) was added dropwise. The solution was stirred over the weekend and the solvent removed. The residue was partitioned between DCM (25 mL) and water (25 mL). The aqueous layer was re-extracted with DCM (25 mL) and the combined organic layers washed with brine (50 mL), dried and concentrated. The crude product was purified by column chromatography. Eluting with 0-50% EtOAc/petroleum ether yielded the product as a yellow foam (470.1 mg), δH (CDCl3, 400 MHz) 1.18 (3H, d), 1.46 (9H, s), 1.97 (1H, m), 2.08 (1H, m), 2.48 (1H, d), 2.68 (1H, d), 3.07 (1H, m), 3.32-3.46 (2H, AB), 3.78 (1H, d), 4.16 (1H, br.s), 7.07 (2H, d), 7.23 (2H, d), 7.39 (1H, d), 7.96 (1H, dd), 8.72 (1H, m). MS (ES+): MH+ 481.2/483.1

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07964597B2
Source datasetuspto-grants-2011_06
ORD IDord-bd732a19da544a8da275b05cffee586c
Source noteuspto-grants-2011_06