Enantiodivergent synthesis of cyclobutyl-(Z)-α,β-dehydro-α-amino acid derivatives from (−)-cis-pinononic acid
作者:Gemma P. Aguado、Albertina G. Moglioni、Rosa M. Ortuño
DOI:10.1016/s0957-4166(02)00749-8
日期:2003.1
The two enantiomers of the title dehydroamino acids (DHAAs) have been synthesized through respective Wadsworth–Emmons condensations of a suitable phosphonate with enantiomeric cyclobutyl aldehydes. These compounds, in turn, were prepared by selective manipulation of the functional groups starting from (−)-cis-pinononic acid as the common chiral precursor. The CD spectra of the prepared DHAAs are described