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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1417540Generated: October 31, 2026

Hydrochloric Acid → HCID 86753767, compound

https://huagongshe.com/reaction/1417540

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 86753768HCID 86753768—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86753767HCID 86753767—

Reaction Steps

(5R,6S,7S)-6-(4-Fluorophenyl)-3-(5-cyano-2-isopropoxyphenyl)-1-oxaspiro[4.4]non-3-ene-7-carboxylic acid methyl ester(128 mg, 0.294 mmol) was taken up in THF(2 mL) and methanol (2 mL) and treated with 2.5N NaOH (0.4 mL, 1.0 mmol) for 6 hours at room temperature. 2N Hydrochloric acid (5 mL) was then added, and the product extracted with ethyl acetate (2×30 mL). The combined extracts were washed with saturated brine solution, dried (MgSO4), and evaporated to afford the title compound; yield 124 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05877191
Source datasetuspto-grants-1999_03
ORD IDord-cb8875482d1f476d8718688c8f509a5d
Source noteuspto-grants-1999_03