Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1176039Generated: October 26, 2026

Tetrahydrofuran → 6-[4-(5-Cyclopropyl-2H-pyrazol-3-ylamino)-6-iodo-quinazolin-2-ylamino]-1,2-dihydro-indazol-3-one

https://huagongshe.com/reaction/1176039

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantSodium BicarbonateHCID 516892—
Reactant6-Amino-3-oxo-2,3-dihydro-indazole-1-carboxylic acid tert-butyl esterHCID 57498019—
ReactantHCID 178478383HCID 178478383—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product6-[4-(5-Cyclopropyl-2H-pyrazol-3-ylamino)-6-iodo-quinazolin-2-ylamino]-1,2-dihydro-indazol-3-oneHCID 17851884895%

Reaction Steps

To (2-Chloro-6-iodo-quinazolin-4-yl)-(5-cyclopropyl-2H-pyrazol-3-yl)-amine (208 mg, 0.606 mmol) in NMP (1 mL) was added 6-Amino-3-oxo-2,3-dihydro-indazole-1-carboxylic acid tert-butyl ester (252 mg, 1.01 mmol) and THF (3 mL) and the solution was heated to 100 C in a sealed tube. After 4 h, the solution was poured into sat. NaHCO3, and extracted with ethyl acetate, dried (Na2SO4) and concentrated in vacuum to give the title compound as a white solid (300 mg, 95% yield). LCMS m/e: 625.2 (M+H), 623.2 (M-H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07842712B2
Source datasetuspto-grants-2010_11
ORD IDord-9f7f8ce38f7849db9ab0b772cd4b7036
Source noteuspto-grants-2010_11