S. Liao et Vj. Hruby, ASYMMETRIC-SYNTHESIS OF OPTICALLY PURE BETA-ISOPROPYLPHENYLALANINE - A NEW BETA-BRANCHED UNUSUAL AMINO-ACID, Tetrahedron letters, 37(10), 1996, pp. 1563-1566
All four optically pure isomers of a highly conformationally constrain
ed unusual amino acid, beta-isopropylphenylalanine, have been asymmetr
ically synthesized.