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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 620672Generated: October 26, 2026

Hydrochloric Acid → N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-1-methyl-4-(1-propenyl)-1H-pyrazole-5-sulfonamide

https://huagongshe.com/reaction/620672

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Reactant2-Amino-4,6-dimethoxypyrimidineHCID 118946—
Reactant4-(2-Propenyl)-1-methyl-5-pyrazole sulfonamideHCID 21243741—
ReactantPhenylcarbamateHCID 21896570—
SolventAcetonitrileHCID 6342—
ProductN-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-1-methyl-4-(1-propenyl)-1H-pyrazole-5-sulfonamideHCID 54314412—

Reaction Steps

The sulfonamide from Example 4 (150 mg, 0.7 mmol) and the phenylcarbamate of 4,6-dimethoxy-2-aminopyrimidine (202 mg, 0.7 mmol) were dissolved in 5 ml of acetonitrile. 1,8-Diazabicyclo[5.4.0]undec-7-ene (112 mg, 0.7 mmol) was added and the reaction was stirred for 30 minutes. Addition of 5 ml of 5% hydrochloric acid resulted in a solid, which was collected and dried to afford 280 mg of the desired product, m.p. 154°-156° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04822403
Source datasetuspto-grants-1989_04
ORD IDord-6e38367568eb4d5d867d853c97ed715c
Source noteuspto-grants-1989_04