On the basis of molecular modeling calculations using GenMol software, new 5-substituted-2',3'-dideoxy-3'-thiauridine were designed as possible anti-HIV reverse transcriptase inhibitors. The synthesis of the key intermediate 5-carboxy-2',3'-dideoxy-3'-thiauridine was achieved through the condensation of the fully silylated 5-carboxyuracil on 2-benzoyl methyl-5-acetoxy-1,3-oxathiolane using trimethylsilyl triflate (TMSOTf). This latter compound was condensed with 2-(N-tert-Butoxycarbonyl)-1-aminoethane in the presence of N,N-diisopropylethylamine (DIEA). The subsequent carboxamide deprotection led to the final compounds. These new analogues were evaluated for their anti-HIV-1 activities on infected MT(4) cells but no significant protection was observed. Electronic and structural parameters considered in this model were not sufficient to predict any active anti-HIV molecular structures.
EP0788364A4
申请人:——
公开号:EP0788364A4
公开(公告)日:1998-05-06
TREATMENT OF UROGENITAL CANCER WITH BORON NEUTRON CAPTURE THERAPY