Patent · US Expired

Processes for the production of chinazoline alkaloids

US7495096B2 · kind B2 · utility

0Cited by

3References

22Claims

0Family size

Assignee

HF Arzneimittelforschung GmbH · DE

Inventors

Joachim Moormann · Werne, DE
Hans-Rainer Hoffmann · Neuwied, DE
Rudolf Matusch · Marburg, DE

Key dates

Filing date	Jan 22, 2004
Grant date	Feb 24, 2009
Priority date	—
Expiry date	Sep 3, 2024

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P25/36
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Processes for the production of a compound of the following formula (I)by converting a compound of formula (II) with 2-pyrrolidone used in excess relative to compound (II) and processes for the production of a compound of formula (III).The latter process includes preparing compound (I); a reduction reaction which yields compound (III) in salt form; and liberating compound (III) from the salt.

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