Total synthesis of trifluoromethylated analogs of macrosphelide A

Autor: Zhong-Xing Jiang, Zhengwei You, Feng-Ling Qing, Bing-Lin Wang
Rok vydání: 2007
Předmět:
Zdroj: Tetrahedron. 63:12671-12680
ISSN: 0040-4020
DOI: 10.1016/j.tet.2007.10.019
Popis: Trifluoromethylated analogs of macrosphelide A 1 and 2 were designed and synthesized. The key segment 6 was efficiently constructed via a series of high stereoselective transformations from trifluoromethylated diol 8 . Methoxymethylation of compound 9 with 1.0 equiv of sodium hydride gave optically pure compound 23a in 73% yield. From 23a a novel route was developed to prepare key segment 7 . The condensation and macrolactonization were smoothly proceeded under our modified Keck's protocol.
Databáze: OpenAIRE