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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1783754Generated: October 30, 2026

Hydrazinecarboxylic acid, ethyl ester → HCID 57590926, compound

https://huagongshe.com/reaction/1783754

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazinecarboxylic acid, ethyl esterHCID 20064—
Reactant7-Bromo-1-ChloroisoquinolineHCID 6502024—
SolventEthanolHCID 702—
ProductHCID 57590926HCID 57590926—

Reaction Steps

7-Bromo-1-chloroisoquinoline (1-1) (79 mg, 0.327 mmol, 1.0 equiv) and Ethyl carbazate (34 mg, 0.33 mmol, 1.0 equiv) were suspended in EtOH (1.5 mL). The reaction mixture was irradiated in microwave at 170° C. for 40 minutes. The crude mixture was purified with reverse phase HPLC (H2O/CH3CN gradient w/0.1% TFA present) to yield 9-bromo[1,2,4]triazolo[3,4-a]isoquinolin-3(2H)-one (1-2). LRMS m/z (M+H) 263.9 and 264.9 found, 264.1 and 265.1 required.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07501435B2
Source datasetuspto-grants-2009_03
ORD IDord-d53a21ed7ab44bd09fe0c7f4e788d4b5
Source noteuspto-grants-2009_03