Wang, Ke published the artcileSynthesis of Arcyriarubin A and Arcyriaflavin A via Cross-Coupling of Indolylboronic Acid with Dibromomaleimides, Recommanded Product: (1-tosyl-1H-Indol-3-yl)boronic acid, the publication is Synthetic Communications (2010), 40(1), 144-150, database is CAplus.
Arcyriarubin A (I) was first isolated by Steglich in 1980 and is also a key intermediate in the synthesis of indolocarbazole alkaloids. A new synthetic approach to the natural products arcyriaflavin A (II) and arcyriarubin A was described. The key step was a Suzuki cross-coupling reaction which was achieved by refluxing 1-tosyl-3-indolylboronic acid, 1-methyl-3,4-dibromomaleimide, Pd(PPh3)4 and Na2CO3 in dioxane/MeOH. The preparation of arcyriaflavin A was accomplished in eight steps from indole with an overall yield of 21%.
Synthetic Communications 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 C15H21BO2, Recommanded Product: (1-tosyl-1H-Indol-3-yl)boronic acid.
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