cycloSal-PMEA and cycloAmb-PMEA: Potentially New Phosphonate Prodrugs Based on the cycloSal-Pronucleotide Approach
摘要:
Two new classes of lipophilic prodrugs of the antiviral active phosphonate 9-[2-phosphonomethoxyethyl] adenine (PMEA 1) have been prepared and were studied with regard to their hydrolysis properties and biological activity. A first series of compounds was prepared on the basis of the cycloSal nucleotide approach. Because of the surprisingly low hydrolysis stability of these cycloSal-PMEA derivatives, more stable derivatives have to be developed. Instead of using salicyl alcohol, in cycloAmb-PMEA derivatives 2-aminobenzyl alcohols were attached to PMEA 1. The latter compounds showed a considerably higher stability compared to the cycloSal counterparts. Stability studies revealed that all lipophilic prodrugs delivered PMEA selectively by chemical means. All compounds proved to be noninhibiting to acetyl- and butyryleholinesterase, and some of the phosphonate diesters were found to be more active against HIV compared to the parent PMEA.
cycloSal-PMEA and cycloAmb-PMEA: Potentially New Phosphonate Prodrugs Based on the cycloSal-Pronucleotide Approach
摘要:
Two new classes of lipophilic prodrugs of the antiviral active phosphonate 9-[2-phosphonomethoxyethyl] adenine (PMEA 1) have been prepared and were studied with regard to their hydrolysis properties and biological activity. A first series of compounds was prepared on the basis of the cycloSal nucleotide approach. Because of the surprisingly low hydrolysis stability of these cycloSal-PMEA derivatives, more stable derivatives have to be developed. Instead of using salicyl alcohol, in cycloAmb-PMEA derivatives 2-aminobenzyl alcohols were attached to PMEA 1. The latter compounds showed a considerably higher stability compared to the cycloSal counterparts. Stability studies revealed that all lipophilic prodrugs delivered PMEA selectively by chemical means. All compounds proved to be noninhibiting to acetyl- and butyryleholinesterase, and some of the phosphonate diesters were found to be more active against HIV compared to the parent PMEA.
Two new classes of lipophilic prodrugs of the antiviral active phosphonate 9-[2-phosphonomethoxyethyl] adenine (PMEA 1) have been prepared and were studied with regard to their hydrolysis properties and biological activity. A first series of compounds was prepared on the basis of the cycloSal nucleotide approach. Because of the surprisingly low hydrolysis stability of these cycloSal-PMEA derivatives, more stable derivatives have to be developed. Instead of using salicyl alcohol, in cycloAmb-PMEA derivatives 2-aminobenzyl alcohols were attached to PMEA 1. The latter compounds showed a considerably higher stability compared to the cycloSal counterparts. Stability studies revealed that all lipophilic prodrugs delivered PMEA selectively by chemical means. All compounds proved to be noninhibiting to acetyl- and butyryleholinesterase, and some of the phosphonate diesters were found to be more active against HIV compared to the parent PMEA.