The present invention relates to new sulfonamide URAT-1 inhibitor compounds of formula (I) or a pharmaceutically acceptable salt thereof:
to compositions containing them, to processes for their preparation and to intermediates used in such processes, and to methods of treatment, wherein R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are as defined in the description.
Mass spectra of chlorinated aromatics formed in pulp bleaching 2—Chlorinated guaiacols
作者:Juha Knuutinen、Ilpo O. O. Korhonen
DOI:10.1002/oms.1210190210
日期:1984.2
AbstractThe fragmentation of chlorinated guaiacols (2‐methoxyphenols) on electron impact has been studied. The most common fragmentation processes are interpreted and in some cases the small differences between spectra of positional isomers are explained. In addition to the well‐known alkyl‐oxygen fission (loss of methyl radical), metastable ion studies and deuterium labelling have indicated several new fragmentation pathways. The most characteristic are the formation of [MCH3HCl]+ and [MCH3Cl]+· ions. In general, however, the spectra of positional isomers are shown to be very similar.
CHEMICAL COMPOUNDS
申请人:Pfizer Limited
公开号:US20140315878A1
公开(公告)日:2014-10-23
The present invention relates to new sulfonamide URAT-1 inhibitor compounds of formula (I) or a pharmaceutically acceptable salt thereof:
to compositions containing them, to processes for their preparation and to intermediates used in such processes, and to methods of treatment, wherein R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are as defined in the description.