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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1860555Generated: November 2, 2026

Hydrochloric Acid → HCID 178437901, compound

https://huagongshe.com/reaction/1860555

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanesulfonyl chlorideHCID 31297—
ReactantHCID 178437900HCID 178437900—
SolventPyridineHCID 1049—
ProductHCID 178437901HCID 17843790198.7%

Reaction Steps

To a stirred solution of 45 mg (0.1 mmol) of 1-(2,4,6-trichlorophenyl)-3-ethyl-6-(4-aminobenzyl)pyrazolo[3,4-d]pyrimidin-4-one in 2 mL of ether-CH2Cl2 was added 0.5 mL of pyridine followed by 0.020 mL (0.26 mmol) of methanesulfonyl chloride. The solution was stirred 39 h at ambient temperature and poured into 1 N aq. HCl. The mixture was extracted with EtOAc, then hexanes. The combined organic extracts were washed with water then brine, dried (MgSO4), and concentrated under reduced pressure to afford 52 mg of 1-(2,4,6-trichlorophenyl)-3-ethyl-6-(4-methanesulfonylaminobenzyl)pyrazolo[3,4-d]pyrimidin-4-one as an amorphous solid. Mass spec. (ESI+): 526 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06531477B1
Source datasetuspto-grants-2003_03
ORD IDord-10b6c4cd274046b98cdb2376ea3e1e6c
Source noteuspto-grants-2003_03