The amide and urea linkage of 54a and 55a facilitated the orientation in the phenyl ring to the solvent, respectively. A sequence involving thermal sixπ-electrocyclization of dialkenyl pyrazoles and oxidation afforded the desired products. -ethylpiperazine moiety are linked by a methylene linker. Such bulky piperazine moiety adopts a sterically extra https://indazole-products20874.mdkblog.com/36798752/the-single-best-strategy-to-use-for-indazole-ring-formation