Roderick W. Bates, Rab'iah Nisha Khanizeman, Hajime Hirao, Yu Shan Tay and Patcharaporn Sae-Lao
Org. Biomol. Chem., 2014,12, 4879-4884
DOI:
10.1039/C4OB00537F,
Paper
The β-amino acid antibiotic (+)-negamycin has been synthesised in ten steps from epichlorohydrin via Sakurai allylation of an isoxazolidine intermediate. The key allylation reaction proceeded with complete trans-selectivity, which is attributed to electrostatic attraction between the chlorine atom and the iminium ion in the Sakurai intermediate.