Achab, Said published the artcileA short route to functionalized imidazo[4,5-c]carbazoles. Synthesis of the first example of the imidazo[4,5-c]β-carboline ring system, Product Details of C15H14BNO4S, the publication is Tetrahedron Letters (2001), 42(50), 8825-8828, database is CAplus.
A new synthetic route to the functionalized imidazo[4,5-c]carbazole I, via intramol. electrocyclization of the vinylimidazolylindole II is described. Thermally induced ring-closure of the (4-amino-5-imidazolyl)-3-indolecarboxylate III led to the previously unknown imidazo[4,5-c]-β-carboline ring system IV. These heterocycles were efficiently converted into analogs of both the marine cytotoxic agents grossularines-1 and -2 and the antimicrobial alkaloid eudistomin U.
Tetrahedron Letters published new progress about 149108-61-2. 149108-61-2 belongs to indole-building-block, auxiliary class Indole,Boronic acid and ester,Sulfamide,Benzene,Boronic Acids,Boronic Acids,Boronic acid and ester,, name is (1-tosyl-1H-Indol-3-yl)boronic acid, and the molecular formula is C15H14BNO4S, Product Details of C15H14BNO4S.
Referemce:
https://www.nature.com/articles/s41429-020-0333-2,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles