Patent · US Expired

Substituted biphenyls

US5138090A · kind A · utility

2Cited by

7References

7Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Peter Fey · Wuppertal, DE
Rolf Angerbauer · Wuppertal, DE
Walter Hubsch · Wuppertal, DE
Thomas Philipps · Cologne, DE
Hilmar Bischoff · Wuppertal, DE
Peter Petzinna · Goldkronach, DE
Delf Schmidt · Wuppertal, DE

Key dates

Filing date	Feb 27, 1990
Grant date	Aug 11, 1992
Priority date	—
Expiry date	Feb 27, 2010

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F7/1804
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Substituted biphenyls can be prepared by reduction of appropriate ketones and, if appropriate, subsequent hydrolysis, cyclization, hydrogenation and separation of isomers. The substituted biphenyls can be used as active compounds in medicaments.

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