Kim, Se Hun published the artcileSynthesis of Alocasin A, Product Details of C20H28BNO5, the publication is Journal of Natural Products (2015), 78(12), 3080-3082, database is CAplus and MEDLINE.
Herein is reported a synthesis of alocasin A (I), an alkaloid component of Alocasia macrorrhiza, a herbaceous plant used in folk medicine throughout southern Asia. A double Suzuki-Miyaura cross-coupling reaction between a 3-borylindole and 2,5-dibromopyrazine was used to assemble the heteroaromatic framework of the natural product. Removal of the protecting groups gave a synthetic sample of I, the spectroscopic data of which matched those in the isolation report of this compound
Journal of Natural Products published new progress about 1256359-99-5. 1256359-99-5 belongs to indole-building-block, auxiliary class Indole,Boronic acid and ester,Amide,Ether,Boronic Acids,Boronate Esters, name is tert-Butyl 5-methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-1-carboxylate, and the molecular formula is C20H28BNO5, Product Details of C20H28BNO5.
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