1.Synthesis of the C-13 side chain precursors of the 9-dihydrotaxane analogue ABT-271.
Leanna MR1, DeMattei JA, Li W, Nichols PJ, Rasmussen M, Morton HE. Org Lett. 2000 Nov 16;2(23):3627-30.
N-Boc-L-Leucinol was converted to two C-13 side chain precursors of the 9-dihydrotaxane analogue ABT-271. The trans-oxazolidine acid 4 and the cis-Boc-lactam 2b were prepared in 44% and 40% overall yield, respectively, and with excellent (>98%) stereochemical purity.