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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 510122Generated: October 30, 2026

Triethylamine → Ethyl 2-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]-8-oxo-8,9-dihydro-7H-purine-6-carboxylate

https://huagongshe.com/reaction/510122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantEthyl 5,6-diamino-2-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]pyrimidine-4-carboxylateHCID 66614118—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductEthyl 2-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]-8-oxo-8,9-dihydro-7H-purine-6-carboxylateHCID 66613645—

Reaction Conditions

Temperature100 °C

Reaction Steps

225 mg (0.55 mmol) of the compound from example 63A were initially charged in dimethylformamide (2.5 ml), then 448 mg (2.76 mmol) of N,N-carbonyldiimidazole and 0.96 ml (6.90 mmol) of triethylamine were added and the mixture was stirred at 100° C. overnight. The reaction mixture was subsequently diluted with water and ethyl acetate, and filtered. The solids were washed with water and, after drying under high vacuum, gave 112 mg (46% of theory) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09096592B2
Source datasetuspto-grants-2015_08
ORD IDord-b5fee0b64f2f40a4ad7f26a3d77db0c0
Source noteuspto-grants-2015_08