Patent · US Expired

Processes for the manufacture of pyrimido[6,1-a]isoquinolinones

US4400506A · kind A · utility

11Cited by

6References

5Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Bansi Lal · Yellandu, IN
Adolf D'Sa · Yellandu, IN
Horst Dornauer · Yellandu, IN
Noel De Souza · Mumbai, IN

Key dates

Filing date	Oct 26, 1981
Grant date	Aug 23, 1983
Priority date	—
Expiry date	Oct 26, 2001

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F9/6561
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

What are disclosed are compounds of the formula ##STR1## wherein, X is oxygen, sulfur, or halogen, useful as intermediates in the preparation of certain pyrimido(6,1-a)isoquinolin-4-ones having pharmaceutical utilities, and methods for making said intermediates.

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