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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 925460Generated: October 31, 2026

Sodium Bicarbonate → [3-((R)-5-Amino-3-difluoromethyl-3,6-dihydro-2H-[1,4]oxazin-3-yl)-4-fluoro-phenyl]-(3-bromo-[1,7]naphthyridin-8-yl)-amine

https://huagongshe.com/reaction/925460

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium BicarbonateHCID 516892—
Reactant[(R)-5-(5-Amino-2-fluoro-phenyl)-5-difluoromethyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]-carbamic acid tert-butyl esterHCID 66666080—
Reactant3-Bromo-8-chloro-1,7-naphthyridineHCID 72213592—
SolventHydrochloric AcidHCID 313—
Solventtert-ButanolHCID 6386—
Solvent1,4-DioxaneHCID 31275—
Product[3-((R)-5-Amino-3-difluoromethyl-3,6-dihydro-2H-[1,4]oxazin-3-yl)-4-fluoro-phenyl]-(3-bromo-[1,7]naphthyridin-8-yl)-amineHCID 71549953—

Reaction Conditions

Temperature100 °C

Reaction Steps

[(R)-5-(5-Amino-2-fluoro-phenyl)-5-difluoromethyl-5,6-dihydro-2H-[1,4]oxazin-3-yl]carbamic acid tert-butyl ester (CAS registry 1262859-09-5) (250 mg, 0.696 mmol) and 3-bromo-8-chloro-[1,7]naphthyridine [Heteroaryl 1] (186 mg, 0.765 mmol) were dissolved in tert-Butanol (4 ml) in a microwave vial and HCl (0.174 ml of a 4M solution in dioxane) was added. The vial was sealed and heated to 100° C. for 1 h. The reaction mixture was cooled to rt and added to a saturated NaHCO3 solution (20 ml) and stirred at rt for 10 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09284284B2
Source datasetuspto-grants-2016_03
ORD IDord-43829f67077540bcaf0b7c1bb4d07895
Source noteuspto-grants-2016_03