%0 Journal Article %T ATTEMPTED SYNTHESIS OF QUINONEMETHINE DERIVATIVE OF NOCARDICIN A ANALOGUES %J Journal of Sciences, Islamic Republic of Iran %I University of Tehran %Z 1016-1104 %D 1990 %\ 03/01/1990 %V 1 %N 2 %P - %! ATTEMPTED SYNTHESIS OF QUINONEMETHINE DERIVATIVE OF NOCARDICIN A ANALOGUES %R %X The synthesis of some 13-lactams is described. 'The electronic activation of monocyclic B-lactams provided by a quinonemethine function was found to instabilize the 13-lactam ring toward nucleophilic: attack by water %U https://jsciences.ut.ac.ir/article_31387_6006c628855103dcaa7e08a6f94cdc58.pdf