Synthesis and antitumor and antiviral activities of 1-.beta.-D-arabinofuranosyl-2-amino-1,4(2H)-iminopyrimidine, and its derivatives

Abstract
1-.beta.-D-Arabinofuranosyl-2-amino-1,4(2H)-imino-5-fluoropyrimidine (10), 1-.beta.-D-arabinofuranosyl-2-amino-1,4(2H)-imino-5-fluoropyrimidine 3''-phosphate (9) and 1-.beta.-D-arabinofuranosyl-2-amino-1,4(2H)-imino-5-chloropyrimidine (11) were synthesized from 2,2''-anhydro-1-.beta.-D-arabinofuranosyl-5-fluorocytosine (5), 2,2''-anhydro-1-.beta.-D-arabinofuranosyl-5-fluorocytosine 3''-phosphate (4), and 2,2''-anhydro-1-.beta.-D-arabinofuranosyl-5-chlorocytosine (6), respectively. 2,2''-Anhydro-1-.beta.-D-arabinofuranosylcytosine 3''-phosphate (7), 1-.beta.-D-arabinofuranosyl-2-amino-1,4-(2H)-iminopyrimidine (13), 1-.beta.-D-arabinofuranosyl-2-amino-1,3(2H)-iminopyrimidine 3''-phosphate (12) and compounds 4, 5 and 9 showed significant in vitro activity against a number of DNA viruses. Compounds 7 and 12 were effective in vivo against type 1 herpes simplex virus. Compounds 7, 12 and 13 were extremely effective in the treatment of mice bearing leukemia L1210.