SEARCH Articles Figures Tables 2- -2-alken-4-olide 2-alkenoate ester 2-alken-4-olide alkanone 3-alkenoic acid 3-alken-3-olide 3-amino-5-hydroxy-2-alken-4-olide alkanal ester 3-amino-5-hydroxy-2-alken-4-olide alkanal nitrile 4- alken-4-olide 1,4-alkanedioic acid anhydride Olide