Photoisomerization of 2-substituted-isothiazol-3(2H)-ones to 3-substituted-thiazol-2(3H)-ones
作者:Joshua Rokach、Pierre Hamel
DOI:10.1039/c39790000786
日期:——
The photoisomerization of isothiazol-3(2H)-ones yields thiazol-2(3H)-ones, possibly by a ring contraction–ring expansion mechanism involving an initial homolytic step.
5-Isothiazolidinonyl and 5-isoxazolidinonyl radicals
作者:Jack E. Baldwin、Athelstan L.J. Beckwith、Anthony P. Davis、Garry Procter、Kevin A. Singleton
DOI:10.1016/s0040-4020(01)97977-3
日期:——
5-isothiazolidinonyl radical (6) to a β-lactam. However, generation of the model radicals (13 and 20) did not lead to β-lactams. The analogous reaction of a 5-isoxazolidinonyl radical is the basis for a potential synthesis of clavulanic acid, but again the rearrangement was not observed in the model radical (24).
N-Substituted isothiazol-3(2H)-ones can be easily prepared fromN-substituted 3-benzoylpropi-onamides in two experimentally simple steps, in satisfactory overall yields. Reaction of the amides with excess thionylchloride results in the formation of N-substituted 5-benzoylisothiazol-3(2H)-ones, which are readily debenzoylated with alkali to the corresponding N-substituted isothiazol-3(2H)-ones. This
[4 + 2]α,β-不饱和Hy的环加成反应:Isothlazolo [4,5- b ] pyridin-3(2 H)-在1,1-二氧化物上(= 4-氮杂糖精衍生物)
Inhibitors of proteins that bind phosphorylated molecules
申请人:Combs P. Andrew
公开号:US20050272778A1
公开(公告)日:2005-12-08
The present invention provides compounds that can modulate the activity of a target protein, such as a phosphatase, that selectively binds phosphorylated peptides or proteins. The present compounds can be useful in treating diseases or disorders, including, for example, diabetes and obesity, that are connected directly or indirectly to the activity of the target protein.