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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1904273Generated: November 1, 2026

Water → HCID 20038781, compound

https://huagongshe.com/reaction/1904273

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 20038779HCID 20038779—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
ProductHCID 20038781HCID 2003878148.2%

Reaction Steps

A solution of ethyl 7-allylamino-2-methyl-2H-pyrazolo-[4,3-b]pyridine-6-carboxylate (100 mg, 0.38 mmol) in dry THF (2 ml) was added dropwise to an ice-cooled suspension of lithium aluminium hydride (15 mg, 0.39 mmol) in THF (1 ml). The mixture was stirred at room temperature, under nitrogen, for 16 h, then water (0.03 ml), 10% sodium hydroxide solution (0.4 ml) and water (0.09 ml) were added sequentially. The solids were filtered off and washed with ethyl acetate. The solution was evaporated in vacuo to give a solid, which was recrystallised from ethyl acetate to give the title compound as needles (40 mg, 48%), m.p. 151°-159° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04837238
Source datasetuspto-grants-1989_06
ORD IDord-b303a245d199440f89e3c1826d37e833
Source noteuspto-grants-1989_06