Patent · US Expired

4-Substituted pyrazolo[3,4-D]pyrimidine derivatives

US4885300A · kind A · utility

16Cited by

3References

16Claims

0Family size

Assignee

Ortho Pharmaceutical Corporation · US

Inventors

Jeffery B. Press · Brewster, US
Zoltan G. Hajos · Princeton, US

Key dates

Filing date	Mar 3, 1988
Grant date	Dec 5, 1989
Priority date	—
Expiry date	Mar 3, 2008

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P9/06
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

4-Substituted pyrazolo[3,4-d]pyrimidine derivatives and a method of synthesis for the derivatives are described. The 4-substituted pyrazolopyrimidine derivatives are useful as cardiotonic agents and antiarryhythmic agents.

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