摘要:
                                A Diels-Alder cycloaddition reaction of an aryloxy diene 7 and an acetylenic ketone 8 derived, respectively, from L-tyrosine and D-serine leads to the synthesis of the diaryl ether unit common to isodityrosine, which upon elaboration provides the functionally differentiated (S,S)-isodityrosinol 15.