Patent · US Expired

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

US6407229B1 · kind B1 · utility

2Cited by

3References

21Claims

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	Apr 23, 1999
Grant date	Jun 18, 2002
Priority date	—
Expiry date	Apr 23, 2019

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.