IP Library › Granted Patent US 7,601,833
Granted Patent B2
US 7,601,833 · App. 12/208,717 · Granted Oct 13, 2009

Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines

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Quick Facts
Patent No.
US 7,601,833
App. No.
12/208,717
Granted
Oct 13, 2009
Kind
B2
Abstract

A process for preparing substituted 5-amino-pyrazolo[4,3-e]-1,2,4-triazolo-[1,5-c]pyrimidine compounds having an aminoalkyl substituent at the 7-position is disclosed, wherein the pyrimidine ring is cyclized using a cyanating agent.

Claims (1)

1. The compound of Formula VIIIa,

Assignments (2)
MERGER Recorded Aug 8, 2022
From: MERCK SHARP & DOHME CORP.
To: MERCK SHARP & DOHME LLC
Reel/Frame 061102/0145 →
CHANGE OF NAME Recorded Aug 30, 2012
From: SCHERING CORPORATION
To: MERCK SHARP & DOHME CORP.
Reel/Frame 028884/0151 →