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.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuing application based on and claiming the priority of U.S. patent application Ser. No. 10/973,631 filed Oct. 26, 2004, which in turn claims the benefit of U.S. Provisional Application No. 60/515,051, filed Oct. 28, 2003, each of which is incorporated herein by reference in its entirety.
![Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 1](http://www.wikipatents.com/process-for-preparing-substituted-5-amino-pyrazolo-43-e-124-triazolo15-cpyrimidines/T/US7439361-1.jpg "Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 1")
![Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 2](http://www.wikipatents.com/process-for-preparing-substituted-5-amino-pyrazolo-43-e-124-triazolo15-cpyrimidines/T/US7439361-2.jpg "Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 2")
![Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 3](http://www.wikipatents.com/process-for-preparing-substituted-5-amino-pyrazolo-43-e-124-triazolo15-cpyrimidines/T/US7439361-3.jpg "Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 3")
![Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 4](http://www.wikipatents.com/process-for-preparing-substituted-5-amino-pyrazolo-43-e-124-triazolo15-cpyrimidines/T/US7439361-4.jpg "Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 4")
![Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 5](http://www.wikipatents.com/process-for-preparing-substituted-5-amino-pyrazolo-43-e-124-triazolo15-cpyrimidines/T/US7439361-5.jpg "Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 5")
![Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 6](http://www.wikipatents.com/process-for-preparing-substituted-5-amino-pyrazolo-43-e-124-triazolo15-cpyrimidines/T/US7439361-6.jpg "Process for preparing substituted 5-amino-pyrazolo-[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines - US Patent 7439361 - Page 6")
