Calyculin synthetic studies. 3. Enantiomeric purity determination for the C(26)–C(32) oxazole segment via the silks-odom 77Se NMR method
作者:Brian A. Salvatore、Amos B. Smith
DOI:10.1016/s0040-4039(00)76209-5
日期:1994.2
An improved preparation of the C(26)-C(32) oxazole subunit of calyculin A is described. The enantiomeric purity was determined via the exceptionally sensitive Silks-Odom method, which can probe remote stereocenters by Se-77 NMR analysis.