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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 325847Generated: October 30, 2026

N-Acetyl-L-Cysteine → N-acetyl-S-benzamidomethyl-L-cysteine

https://huagongshe.com/reaction/325847

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-Acetyl-L-CysteineHCID 12035—
Reactant1,4-DioxaneHCID 31275—
Reactant2-(Chloromethyl)benzamideHCID 22291138—
ProductN-acetyl-S-benzamidomethyl-L-cysteineHCID 56623287—

Reaction Conditions

Temperature25 °C

Reaction Steps

N-acetyl-L-cysteine (0.5 g, 3.06 mmol) was dissolved in 50 ml of dry dioxane. Chloromethyl benzamide (0.52 g, 3.06 mmol) was added and the colorless solution was stirred at 25° C. for 18 hours. The dioxane was evaporated under vacuum with minimal amount of heating to give a colorless oil: NMR (CDCl3 +DMSO) δ8.05-7.38 (m, 5, aryl), 4.58 (d, 2, --SCH2NH--), 2.01 (s, 3, --CH3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04443435
Source datasetuspto-grants-1984_04
ORD IDord-4e22385d2bb6471cae26836b3ae457d4
Source noteuspto-grants-1984_04