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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 12090Generated: October 29, 2026

Hydrochloric Acid → 8-{2-[1,1-dimethyl-2-(4-hydroxyphenyl)ethylamino]-1-hydroxyethyl}-6-benzyloxy-4H-benzo[1,4]oxazin-3-one

https://huagongshe.com/reaction/12090

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-HydroxyphentermineHCID 84139—
Reactant(6-benzyloxy-4H-benzo[1,4]oxazin-3-one)-glyoxal hydrateHCID 86593722—
Product8-{2-[1,1-dimethyl-2-(4-hydroxyphenyl)ethylamino]-1-hydroxyethyl}-6-benzyloxy-4H-benzo[1,4]oxazin-3-oneHCID 22063487—

Reaction Steps

The title compound is prepared from 10 g of (6-benzyloxy-4H-benzo[1,4]oxazin-3-one)-glyoxal hydrate and 4.6 g of 1,1-dimethyl-2-(4-hydroxyphenyl)ethylamine analogously to the method for Example 3(a). Yield: 9.0 g (64%, hydrochloride); melting point: 255° C.-258° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07727984B2
Source datasetuspto-grants-2010_06
ORD IDord-6d605ae120b142b89b2218dc15bdf324
Source noteuspto-grants-2010_06