A new approach to the synthesis of rare thiazino[6,5-b]indol-4-one derivatives. First total synthesis of the indole phytoalexin cyclobrassinon
作者:Peter Kutschy、Mojmı́r Suchý、Aldo Andreani、Milan Dzurilla、Vladimı́r Kováčik、Juraj Alföldi、Maddalena Rossi、Mária Gramatová
DOI:10.1016/s0040-4020(02)01124-9
日期:2002.10
The first synthesis of the indole phytoalexin cyclobrassinon and some of its analogues, possessing a thiazino[6,5-b]indol-4-one tricyclic ring system was performed starting from 1-substitued 2-chloroindole-3-carboxaldehydes. The route employed the intramolecular Et3N-mediated or photochemical nucleophilic substitution of a chlorine atom in the 2-position of the indole ring with a sulfur atom as a key
带有噻嗪[6,5 - b ]吲哚-4-酮三环系统的吲哚植物抗毒素环布拉索农及其某些类似物的首次合成从1-取代的2-氯吲哚-3-甲醛开始进行。该路线采用在分子内由Et 3 N介导或光化学的亲核取代吲哚环的2-位上的氯原子被硫原子作为关键步骤。对选定的肿瘤细胞系,细菌和真菌的生物学活性检查显示合成的化合物没有表达活性。