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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2261015Generated: November 2, 2026

Sulfuric Acid → HCID 24856719, compound

https://huagongshe.com/reaction/2261015

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantSodium NitriteHCID 23668193—
ReactantHCID 178436417HCID 178436417—
ProductHCID 24856719HCID 2485671942.9%

Reaction Steps

In analogy to GP 6, reaction of 95.6 mg of 1-[4-(3-amino-6-tert-butyl-1H-pyrazolo-[3,4-b]pyridin-4-yl)-phenyl]-3-(3-ethyl-phenyl)-urea (0.22 mmol, 1 eq.) with 35 μL concentrated sulphuric acid and 38 mg sodium nitrite (2.5 eq.) yielded 39 mg of the desired product (42% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07846928B2
Source datasetuspto-grants-2010_12
ORD IDord-c44122838cae4ed3bc412130b040610e
Source noteuspto-grants-2010_12