The potential of aspirin in prodrug synthesis: a new potential delivery system of AZT and FLT.
Aspirin (O-acetylsalicylic acid) has been used to synthesize prodrugs of 3'-azido-3'-deoxythymidine (AZT) and 3'-deoxy-3'-fluorothymidine (FLT). The mixed anhydride between aspirin and trifluoroacetic acid was synthesized and reacted with AZT and FLT to give the blocked nucleosides attached through the 5'-O position to the 2-position of 2-methyl-4H-1,3-benzodioxin-4-one. The prodrugs showed the same activities against HIV-1 in MT-4 cells as the original drugs. Hydrolysis of the synthesized prodrugs in the growth medium, used for anti-HIV investigations, resulted in formation of 5-O acetylated drugs which were subsequently hydrolyzed into the original drugs.
Department of Chemistry, Odense University, Denmark.
M A
MA
Zahran
L
L
Kovács
I
I
el Sakka
E B
EB
Pedersen
C
C
Nielsen
D000998:Antiviral Agents / Q000378:metabolism*; D001241:Aspirin / Q000378:metabolism*; D015224:Dideoxynucleosides / Q000378:metabolism*; D016503:Drug Delivery Systems; D006801:Humans; D011355:Prodrugs / Q000138:chemical synthesis*; D015215:Zidovudine / Q000378:metabolism*
D000998:Antiviral Agents; D015224:Dideoxynucleosides; D011355:Prodrugs; D015215:Zidovudine; C002854:alovudine; D001241:Aspirin