Synthesis of Hypervalent Iodine(III) Reagents Containing a Transferable (Diarylmethylene)amino Group and Their Use in the Oxidative Amination of Silyl Ketene Acetals
The preparation of some hypervalent iodine reagents containing a transferable amino group derived from benzophenone imine derivatives is reported. The reagents can be readily prepared and stored as a bench‐stable solid, and were successfully used in the transition‐metal‐free oxidative amination of silyl ketene acetals to afford the corresponding α‐amino esters, the benzophenone imine moieties of which
WHEELER, TH. N., J. ORG. CHEM., 1984, 49, N 4, 706-709
作者:WHEELER, TH. N.
DOI:——
日期:——
Pyrrolopyrrolone derivatives as inhibitors of neutrophil elastase
申请人:Glaxo Wellcome Inc.
公开号:US05994344A1
公开(公告)日:1999-11-30
There are described according to the invention compounds of formula (I) (relative stereochemistry indicated), wherein R.sub.1, R.sub.2, R.sub.3 and X are as defined in the specification, together with processes for preparing them, compositions containing them and their use as pharmaceuticals. Compounds of formula (I) are indicated inter alia for the treatment of chronic bronchitis.