Synthesis of 3′,4′-C-Bishydroxymethyl-2′,3′,4′-trideoxy-β-L-threo-pentopyranosyl Nucleosides as Potential Inhibitors of HIV
摘要:
The synthesis of 3',4'-bishydroxymethy1-2',3',4'-trideoxy pentopyranosyl derivatives of thymine, uracil, cytosine, and adenine is described. trans-(3S, 4S)-Bis (methoxycarbonyl)cyclopentanone (3) as converted to 1-O-acetyl-3,4-C-bis[(tert-butyldiphenylsiloxy)methyl] -2,3,4-trideoxy-alpha,beta-L-threo-pentopyranose (6), which was subsequently condensed with the silylated purine and pyrimidine bases.
The synthesis of optically pure unsaturated carbocyclic nucleoside analogues is described. (3,4S)-Bis(t-butyldiphenylsilyloxymethyl)-2-cyclopenten-1R and 1S-ol were coupled with 6-chloropurine and 2-amino-6-chloropurine respectively, using a modified Mitsunobu reaction. The products were reacted further using standard procedures to give compounds 12, 14, 16 and 18 which were tested for anti-HIV activity
The synthesis of optically pure unsaturated carbocyclic nucleoside analogues is described. (3,4S)-Bis(t-butyldiphenyl silyloxymethyl)-1R and 1S cyclopent-2-en-1-ol were coupled with 6-chloropurine and 2-amino-6-chloropurine respectively, using a modified Mitsunobu reaction. The products were reacted further using standard procedures to give compounds 12, 14, 16 and 18.