Design, Synthesis, Biological Evaluation and Inhibition Mechanism of 3-/4-Alkoxy Phenylethylidenethiosemicarbazides as New, Potent and Safe Tyrosinase Inhibitors
In the first communication the synthetic methods are described for preparing aromatic analogues of juvenile hormone like activity. The para-substituted 2-methyl-cinnamic acid derivatives are formed by a Friedel-Crafts acylation of a phenol, followed by the Wadsworth-Emmons (Wittig-Horner)-Reaction with the corresponding phosphonates. More than 120 compounds are listed.
Pyrone derivatives as protease inhibitors and antiviral agents
申请人:Warner-Lambert Company
公开号:US05808062A1
公开(公告)日:1998-09-15
The present invention relates to novel tri- and tetrasubstituted pyrones and related structures which potently inhibit the HIV aspartyl protease blocking HIV infectivity. The pyrone derivatives are useful in the development of therapies for the treatment of bacterial and viral infections and diseases, including AIDS. The present invention is also directed to methods of synthesis of multifunctionalized pyrones and of related structures.