AN IMPROVED PROCESS FOR THE PREPARATION OF PURINES
申请人:Joshi Anna Ramesh
公开号:US20050215787A1
公开(公告)日:2005-09-29
The present invention relates to a process for the preparation of Purines. More particularly it relates to the preparation of Purines of formula (1)
wherein X is hydrogen, thioaryl; R
1
and R
2
are hydrogen or acetyl.