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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1349768Generated: October 31, 2026

Hydrochloric Acid → HCID 22480189, compound

https://huagongshe.com/reaction/1349768

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTetrahydrofuranHCID 8028—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 22480129HCID 22480129—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 22480189HCID 2248018980.5%

Reaction Conditions

Temperature65 °C

Reaction Steps

To a solution of ethyl-3-benzo[d]furan-2-yl-1-perhydro-2H-pyran-2-yl-1H-indazole-5-carboxylate (500 mg, 1.2 mmol) in a solution of tetrahydrofuran, methanol, and water (2:1:1) (4 mL) was added sodium hydroxide (200 mg, 5 mmol). The reaction was allowed to reflux overnight at 65° C. The solution was neutralized with 1 N HCl and extracted with ethyl acetate to yield the title compound (350 mg, 40% yield). ES-MS (m/z) 363 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07211594B2
Source datasetuspto-grants-2007_05
ORD IDord-6052679fa4164277b1fc0902d926906a
Source noteuspto-grants-2007_05