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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1410093Generated: October 26, 2026

Water → HCID 71534185, compound

https://huagongshe.com/reaction/1410093

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant3,4-DimethoxyanilineHCID 22770—
ReactantDiisopropylethylamineHCID 81531—
Reactant5,7-Dichlorothiazolo(5,4-d)pyrimidineHCID 609639—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 71534185HCID 7153418582.8%

Reaction Steps

A mixture of 5,7-dichlorothiazolo[5,4-d]pyrimidine (0.925 g, 4.49 mmol), 3,4-dimethoxybenzenamine (0.89 g, 5.8 mmol) and DIEA (0.86 g, 6.66 mmol) in 12 mL of DMSO was stirred at room temperature for 24 hours. Then the reaction mixture was poured into 50 mL of water, the solid was filtered and washed with water (50 mL) to give a crude product as a solid. It was purified by silica gel chromatography (silica gel 200-300 mesh, eluting with ethyl acetate) to give 5-chloro-N-(3,4-dimethoxyphenyl)thiazolo[5,4-d]pyrimidin-7-amine (1.2 g, 82.8%) as a grey solid. LC-MS: 322.9 [M+H]+, tR=1.51 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08921383B2
Source datasetuspto-grants-2014_12
ORD IDord-45b3fadfb00d4288b0af4ae254ea6cdf
Source noteuspto-grants-2014_12