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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1622848Generated: October 31, 2026

Hydrochloric Acid → HCID 66748128, compound

https://huagongshe.com/reaction/1622848

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 66824180HCID 66824180—
SolventTetrahydrofuranHCID 8028—
ProductHCID 66748128HCID 6674812893.8%

Reaction Steps

A mixture of 9-[4-(1,4-dioxaspiro[4.5]dec-8-yloxy)phenyl]-3,4-dihydropyrido[2,1-c][1,2,4]thiadiazine 2,2-dioxide (130 mg), 1M hydrochloric acid (15 mL) and dehydrated THF (15 mL) was stirred at room temperature for 8 hr. The reaction mixture was neutralized with 1M aqueous sodium hydroxide solution, and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was washed with diethyl ether to give the title compound (109 mg) as a pale-yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08778934B2
Source datasetuspto-grants-2014_07
ORD IDord-bbc8cd67ff5948fbb7e6309b19147a78
Source noteuspto-grants-2014_07