Pyrrolinone-Based HIV Protease Inhibitors. Design, Synthesis, and Antiviral Activity: Evidence for Improved Transport
摘要:
Pyrrolinone-based peptidomimetics, the first mimics of beta-strands, are potent inhibitors of HIV-1 protease. Importantly, the bis(pyrrolinones) described herein proved to be more active in cellular antiviral assays compared with an analogous peptide-derived inhibitor even though they are less effective in inhibiting the isolated protease. These results suggest that pyrrolinone inhibitors offer better transport properties than the corresponding peptide-based peptidomimetics; we attribute this effect to decreased solvation of the mimetics. Structure-activity relationships for the pyrrolinones correlate well with those reported for related peptides, consistent with similar modes of binding.
Synthesis of β-hydroxy-γ-trimethylsilyl-γ-butyrolactone as key chiral building block for preparation of four-carbon chain units having tertiary stereogenic carbon
摘要:
A new chiral building block beta-hydroxy-gamma-trimethylsilyl-gamma-butyrolactone (1) was prepared from gamma-trimethylsilylallyl acetate (2) via two steps in excellent overall yield. The lactone 1 is useful precursor to four-carbon chain blocks having tertiary stereogenic center such as 6, 10 and 11.