Cage DimericN-Acyl- andN-Acyloxy-4-aryl-1,4-dihydropyridines as First Representatives of a Novel Class of HIV-1 Protease Inhibitors
摘要:
The synthesis of a series of novel cage dimeric N-acyl and N-acyl-oxy-3-aryl-1,4-dihydropyridines starting either from solid-state synthetic ester dimers or hom monomeric 4-aryl-1,4-dihydropyridines is presented. Their biological evaluation as novel HIV-1 protease inhibitors showed the most active compounds to be 5c and 5i with inhibitory activities of 52% (50 mu M) and 49% (25 mu M), respectively. Within each series of N-acyl- and N-acyloxy derivatives NCOBz and NBoc groups were found to be the best substituents. Although they exhibiting only moderate activities these cage dimers hold promise as a class of novel non-peptidic HIV-1 protease inhibitors.
Novel solid-state synthesis of dimeric 4-aryl-1,4-dihydropyridines
作者:Andreas Hilgeroth、Frank W. Heinemann
DOI:10.1002/jhet.5570350217
日期:1998.3
On irradiation in the solid state the 4-aryl-1,4-dihydroypridines 1 undergo [2+2] cycloadditon to centrosymmetric head-to-tail dimers 3 and 4a. The almost exclusive formation of the cage dimers 3 via the C2-symmetric syn-dimers 2 takes place in nearly quantitative yields, in contrast with the cycloaddition reaction of the anti-dimer 4a, which is accompanied by photooxidation to pyridine 5a.
The synthesis of a series of novel cage dimeric N-acyl and N-acyl-oxy-3-aryl-1,4-dihydropyridines starting either from solid-state synthetic ester dimers or hom monomeric 4-aryl-1,4-dihydropyridines is presented. Their biological evaluation as novel HIV-1 protease inhibitors showed the most active compounds to be 5c and 5i with inhibitory activities of 52% (50 mu M) and 49% (25 mu M), respectively. Within each series of N-acyl- and N-acyloxy derivatives NCOBz and NBoc groups were found to be the best substituents. Although they exhibiting only moderate activities these cage dimers hold promise as a class of novel non-peptidic HIV-1 protease inhibitors.