SEMINARIO QUÍMICA ORGÁNICA 5-5-25 EXPOSITOR : Qco. Arturo Mendoza Salgado TÍTULO : " Total Syntheses of Uvarindoles A and B, (±)-Pseudophrynaminol, and (±)-Pseudophrynamines 272A and 270 via Dearomative Indole Alkylation " FUENTE : Raju Chouhan and Sajal Kumar Das, J. Org. Chem. 2025 , 90 , 5062–5065. DÍA, HORA y LUGAR : Lunes 5 de mayo de 2025, 14:00 h, Aula 18 y virtual. Modalidad virtual, Link : meet.google.com/hjn-ygro-twf ( Plataforma MEET GOOGLE) Resumen : Herein, we report the first total synthesis of alkaloid uvarindole B with an overall yield of 49% over five steps via double C3-alkylation of 5-bromoindole, Plancher rearrangement, and Negishi coupling as the key steps. We also disclose short total syntheses of uvarindole A, pseudophrynaminol, and pseudophrynamines 272A and 270 via dearomative indole alkylation.