In the preceding paper, the asymmetric synthesis of the C26-C42 fragment of ulapualide A was reported. 1 In this communication we wish to report the first asymmetric synthesis of the C8-C25 tris-oxazole fragment containing the C9-methyl-bearing stereocenter which is suitably functionalized at both ends for subsequent fragment coupling. 2
[Hartung, Ingo V.; Eggert, Ulrike; Haustedt, Lars Ole; Niess, Barbara; Schaefer, Peter M.; Hoffmann, H. Martin R. Synthesis, 2003 , # 12 p. 1844 - 1850]