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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2204125Generated: November 2, 2026

Hydrochloric Acid → HCID 121386661, compound

https://huagongshe.com/reaction/2204125

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant1,4-DioxaneHCID 31275—
ReactantHCID 58550888HCID 58550888—
SolventMethanolHCID 887—
SolventDichloromethaneHCID 6344—
ProductHCID 121386661HCID 121386661—

Reaction Conditions

Temperature40 °C

Reaction Steps

To a solution of tert-butyl spiro[piperidine-4,4′-pyrazolo[1,5-d]pyrido[2,3-b][1,4]oxazine]-1-carboxylate (35 mg, 0.10 mmol) in CH2Cl2 (1 mL) and MeOH (0.1 mL) was added HCl in dioxane (256 μL of 4 M, 1.02 mmol) and the mixture was stirred at 40° C. for 4 hours. The reaction mixture was evaporated and the hydrochloric acid salt of the product was used without further purification. ESI-MS m/z calc. 242.1, found 243.5 (M+1)+. Retention time: 0.32 minutes (3 min run).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09365588B2
Source datasetuspto-grants-2016_06
ORD IDord-3e5e86140ba140a9979186135983c05c
Source noteuspto-grants-2016_06