Carbon Dioxide Radical Anion by Photoinduced Equilibration between Formate Salts and [<sup>11</sup>C, <sup>13</sup>C, <sup>14</sup>C]CO<sub>2</sub>: Application to Carbon Isotope Radiolabeling
emergence of carbondioxideradicalanion chemistry might set forth potential unexplored opportunities. Based on a dynamic isotopic equilibration between formate salts and [13C, 14C, 11C]CO2, C-labeled radicalanion CO2•– could be accessed under extremely mild conditions within seconds. This methodology was successfully applied to hydrocarboxylation and dicarboxylation reactions in late-stage carbon isotope
Azaindole derivatives and their use as therapeutic agents
申请人:——
公开号:US20020022624A1
公开(公告)日:2002-02-21
The present invention relates to compounds of the formula (I):
1
wherein:
Het represents a heterocyclic residue selected from:
2
where the dotted line in (b) represents an optional double bond;
A completes a fused pyridine ring; and
B completes a fused benzene or pyridine ring.
The compounds are of particular use in the treatment or prevention of depression, anxiety, pain, inflammation, migaine, emesis or postherpetic neuralgia.