4-Hydroxy-5,6-dihydropyrones. 2. Potent Non-Peptide Inhibitors of HIV Protease
作者:Bradley D. Tait、Susan Hagen、John Domagala、Edmund L. Ellsworth、Christopher Gajda、Harriet W. Hamilton、J. V. N. Vara Prasad、Donna Ferguson、Neil Graham、Donald Hupe、Carolyn Nouhan、Peter J. Tummino、Christine Humblet、Elizabeth A. Lunney、Alexander Pavlovsky、John Rubin、Stephen J. Gracheck、Eric T. Baldwin、T. N. Bhat、John W. Erickson、Sergei V. Gulnik、Beishan Liu
DOI:10.1021/jm970615f
日期:1997.11.1
The 4-hydroxy-5,6-dihydropyrone template was utilized as a flexible scaffolding from which to build potent active site inhibitors of HIVprotease. Dihydropyrone 1c (5,6-dihydro-4-hydroxy-6-phenyl-3-[(2-phenylethyl)thio]-2H-pyran-2-one) was modeled in the active site of HIVprotease utilizing a similar binding mode found for the previously reported 4-hydroxybenzopyran-2-ones. Our model led us to pursue
Enantioselective syntheses of α-substituted glutamic acids and α,γ-disubstituted glutamic acids by an asymmetric Strecker reaction
作者:Dawei Ma、Guozhi Tang、Hongqi Tian、Guixiang Zou
DOI:10.1016/s0040-4039(99)01121-1
日期:1999.7
The Strecker reaction of the product from the treatment of the sodium salt of γ-keto acids with (S)-phenylglycinol followed by heating the products to 200 °C gives the bicyclic lactones 9 and 10. Alkylation of 9 provides 11 and 12. Both 9b and 11a are converted into the corresponding substituted glutamicacids via reductive cleavage and hydrolysis.