Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1154641Generated: October 31, 2026

Ammonium Chloride → HCID 20433756, compound

https://huagongshe.com/reaction/1154641

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantZatebradineHCID 65637—
ReactantAluminium lithium hydrideHCID 21226445—
SolventDiethyl EtherHCID 3283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 20433756HCID 20433756—

Reaction Steps

2.7 gm (6 mmols) of 1-[7,8-dimethoxy-1,3,4,5-tetrahydro-2H-3-benzazepin-2-on-3-yl]-3-[N-methyl-N-(2-{3,4-dimethoxy-phenyl}ethyl)-amino]-propane were dissolved in 100 ml of absolute ether and 100 ml of absolute tetrahydrofuran; the solution was mixed with 0.25 gm of lithium aluminum hydride, and the mixture was refluxed for 3.5 hours. After cooling, a 10% ammonium chloride solution was added, while cooling was continued; then the mixture was suction-filtered, and the filtrate was concentrated by evaporation. The residue was purified on a silica gel column with methylene chloride. The fractions were concentrated by evaporation, the residue was dissolved in acetone, and the dihydrochloride was precipitated with methanolic hydrochloric acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04490369
Source datasetuspto-grants-1984_12
ORD IDord-b90c1f13b24b436e9c45f0af654b5e7f
Source noteuspto-grants-1984_12