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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1754413Generated: October 28, 2026

Hydrochloric Acid → N2-(4,4-dimethyl-4H-benzo[b]tetrazolo[1,5-d][1,4]oxazin-8-yl)-5-fluoro-N4-(octahydro-5,5-dimethylindolizin-7-yl)pyrimidine-2,4-diamine

https://huagongshe.com/reaction/1754413

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantN-(2-chloro-5-fluoropyrimidin-4-yl)-octahydro-5,5-dimethylindolizin-7-amineHCID 86704443—
Reactant4,4-dimethyl-6-fluoro-4H-benzo[b]tetrazolo[1,5-d][1,4]oxazin-8-amineHCID 86704468—
SolventIsopropanolHCID 3776—
Solvent1,4-DioxaneHCID 31275—
ProductN2-(4,4-dimethyl-4H-benzo[b]tetrazolo[1,5-d][1,4]oxazin-8-yl)-5-fluoro-N4-(octahydro-5,5-dimethylindolizin-7-yl)pyrimidine-2,4-diamineHCID 8670446783.4%

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution of (R/S,S/R)—N-(2-chloro-5-fluoropyrimidin-4-yl)-octahydro-5,5-dimethylindolizin-7-amine (D1) (0.1 g, 0.3 mmol, single diastereomer) in 3 ml of iPrOH, 4,4-dimethyl-6-fluoro-4H-benzo[b]tetrazolo[1,5-d][1,4]oxazin-8-amine (0.093 g, 0.4 mmol) and 4N HCl in dioxane (0.1 ml) were added. The reaction mixture was heated to 100° C. in a sealed vial for 12 hours. LCMS analysis of the crude reaction mixture indicated the completion of the reaction. The crude product was purified by column chromatography to give 0.12 g (Yield=72%) of the product as a mixture of two enantiomers.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09169249B2
Source datasetuspto-grants-2015_10
ORD IDord-54f0b779125a4c1ab91a26db1a59a0c2
Source noteuspto-grants-2015_10