Process for preparing...

Details Process for preparing... Process for preparing...

2006-05-09

2006-05-09

Saeed, Kamal A. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

Reexamination Certificate

active

07041823

ABSTRACT:
Disclosed is a process for preparing 9-[4-acetoxy-3-(acetoxymethyl)but-1-yl]-2-aminopurine (called Famciclovir), a drug of purine derivatives having antiviral activity. This process comprises reacting 2-aminopurine with 2-acetoxymethyl-4-bromobut-1-yl-acetate in the presence of thallium (I) ethoxide to give the desired compound. According to this process, the desired compound can be prepared in very high selectivity and purity under mild reaction conditions.

REFERENCES:
patent: 5138057 (1992-08-01), Geen et al.
patent: 5684153 (1997-11-01), Geen et al.
patent: 5917041 (1999-06-01), Daluge et al.

Affiliated with

Also associated with

Rating

Process for preparing... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3650040