10.1016/S0008-6215(97)00079-7
The research aimed to synthesize 4-cyanophenyl 2-azido-2-deoxy- and 3-azido-3-deoxy-1,5-dithio-β-D-xylopyranosides, which are carbohydrate derivatives with potential antithrombotic activity. The study built upon previous work by modifying the structure of beciparcil, a known antithrombotic agent, by replacing hydroxyl groups with azido groups to enhance its oral activity. Key chemicals used in the synthesis process included 3,4-di-O-benzoyl-1,5-anhydro-5-thio-D-threo-pent-1-enitol, sodium azide, ceric ammonium nitrate, trimethylsilyl triflate, and 4-cyanothiophenol, among others. The synthesized compounds were then tested for their oral antithrombotic activity in rats, with results showing that the introduction of azido groups significantly increased the activity compared to the parent compound beciparcil. However, the activity decreased upon acetylation of the amino group in the synthesized derivatives. The study concluded that compounds 3, 4, and 36 possess high oral antithrombotic activity, with the α-anomer 34 being inactive.