Stereoselective synthesis of pinane-based β- and γ-amino acids via conjugate addition of lithium amides and nitromethane
作者:Zsolt Szakonyi、Árpád Balázs、Tamás A. Martinek、Ferenc Fülöp
DOI:10.1016/j.tetasy.2010.09.009
日期:2010.10
Michael addition of dibenzylamine to (−)- and (+)-tert-butyl myrtenate, (−)-2 and (+)-2, derived from (−)- and (+)-myrtenal, furnished monoterpene-based β-amino acid derivatives in highly stereospecific reactions. The resultant amino esters (−)-3 and (+)-3 were transformed to unsubstituted, mono- and disubstituted and Fmoc-protected amino acids (−)-6-11 and (+)-6-11, which are promising building blocks