Last updated: February 19, 2026
What is the Core Invention of EA201791732?
Eurasian Patent EA201791732, granted to InterChem A/S on December 29, 2017, covers a method for preparing 2,3-disubstituted-6,7-dihydro-5H-pyrazolo[1,5-a]pyrimidines. The patent’s primary focus is on improving the efficiency and yield of synthesizing these chemical compounds, which have demonstrated therapeutic potential in treating various diseases. Specifically, the invention details a chemical process involving the reaction of a 5-aminopyrazole with a 1,3-dicarbonyl compound in the presence of a Lewis acid catalyst. This method is presented as an advancement over existing synthesis routes, which may suffer from lower yields, longer reaction times, or the use of less environmentally friendly reagents.
What are the Key Claims of EA201791732?
The patent’s claims define the legal boundaries of the invention. EA201791732 contains five independent claims, primarily focusing on the synthesis method.
- Claim 1: This is the broadest claim and defines the core inventive method. It specifies a process for producing a compound of Formula (I):
