High reactivity of trimethoxyphenyl (TMP)-iodonium(III) acetate for phenol O-arylation was achieved. It was first determined that the TMP ligand and acetate anion cooperatively enhance the electrophilic reactivity toward phenol oxygen atoms. The proposed method provides access to various diaryl ethers in significantly higher yields than the previously reported techniques. Various functional groups
Quinuclidine-substituted aryl compounds for treatment of disease
申请人:——
公开号:US20020040035A1
公开(公告)日:2002-04-04
The invention provides compounds of Formula I:
1
These compounds may be in the form of pharmaceutical salts or compositions, and racemic mixtures or pure enantiomers thereof. The compounds of Formula I are useful in pharmaceuticals in which &agr;7 is known to be involved.