Patent · US Expired

Processes for the preparation of derivatives of 4a, 5, 9, 10, 11, 12-hexahydro-6H-benzofuro-[3a, 3, 2-ef][2]benzazepine

US6369238B1 · kind B1 · utility

3Cited by

3References

2Claims

0Family size

Assignee

SANOCHEMIA PHARMAZEUTIKA AG · AU

Inventors

Laszlo Czollner · Neufeld, AT
Johannes Frohlich · Wien, AT
Ulrich Jordis · Wien, AT
Bernhard Kuenburg · Wien, AT

Key dates

Filing date	Mar 23, 2001
Grant date	Apr 9, 2002
Priority date	—
Expiry date	Mar 23, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D491/20
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to processes for the preparation of 4a,5,9,10,11,12-hexahydro-6H-benzofuro[3a,3,2-ef][2]benzazepine, or derivatives thereof. Furthermore, the invention also relates to the compounds formed during the preparation of 4a, 5,9,10,11,12-hexahydro-6H-benzofuro[3a,3,2-ef][2]benzazepine.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.