| http://www.w3.org/ns/prov#value | - Coupling of intermediates of formula 1.1 with intermediates of formula 1.2 wherein G, for example, is a halide or tosylate can be accomplished thermally by methods known to one skilled in the art of organic synthesis at temperatures between ???78??? C. and 250??? C. in a variety of solvents such as tetrahydrofuran, ethanol, dichloroethane, dichloromethane, toluene, dimethylformamide or dioxane pro
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