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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1664928Generated: October 25, 2026

Hydrochloric Acid → (6S,9R)-6-(2,3-difluorophenyl)-3-(2,2,2-trifluoroethyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-9-amine

https://huagongshe.com/reaction/1664928

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-Butyl (6S,9R)-6-(2,3-difluorophenyl)-3-(2,2,2-trifluoroethyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-9-ylcarbamateHCID 59734931—
Solvent1,4-DioxaneHCID 31275—
Product(6S,9R)-6-(2,3-difluorophenyl)-3-(2,2,2-trifluoroethyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-9-amineHCID 67439949—

Reaction Steps

Hydrochloric acid (4.0 M in dioxane; 10 mL, 40.1 mmol) was added to a solution of tert-butyl [(6S,9R)-6-(2,3-difluorophenyl)-3-(2,2,2-trifluoroethyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-9-yl]carbamate (618 mg, 1.384 mmol) in 1,4-dioxane (5 mL). After 1 h, the reaction was concentrated to give the title compound as a bis hydrochloride salt (584 mg). MS 347.1 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08039460B2
Source datasetuspto-grants-2011_10
ORD IDord-342ac472442f4dd1916d5f8e31d8633a
Source noteuspto-grants-2011_10