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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 335283Generated: October 26, 2026

1-Hydroxybenzotriazole → 3-Amino-4-bromo-N-(2-(4-methylpiperazin-1-yl)benzyl)benzamide

https://huagongshe.com/reaction/335283

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant2-(4-Methyl-1-piperazinyl)benzenemethanamineHCID 2795568—
Reactant3-Amino-4-Bromobenzoic AcidHCID 3418752—
ReactantN1,N1-dimethyl-N2-((propylimino)methylene)ethane-1,2-diamineHCID 86695678—
SolventDichloromethaneHCID 6344—
Product3-Amino-4-bromo-N-(2-(4-methylpiperazin-1-yl)benzyl)benzamideHCID 86695677—

Reaction Steps

N1,N1-dimethyl-N2-((propylimino)methylene)ethane-1,2-diamine (0.70 ml, 3.99 mmol) was added to a stirred solution/suspension of 3-amino-4-bromobenzoic acid (719 mg, 3.33 mmol), (2-(4-methylpiperazin-1-yl)phenyl)methanamine (820 mg, 3.99 mmol) and HOBt (140 mg, 1.0 mmol) in dry DCM (20 ml) under argon. After 24 hrs the reaction mixture was diluted with DCM and washed several times with water. The solvent was removed in vacuo and the resulting yellow oil was triturated with DCM/diethyl to give a yellow crystalline powder;

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08883819B2
Source datasetuspto-grants-2014_11
ORD IDord-af0775104a0a4395ada3c99c99167468
Source noteuspto-grants-2014_11