Purely from a synthesis standpoint, if you are trying to maintain the length of the molecule but get rid of the db, you can hit it with H2 and a transition metal catalyst like Pt or Pd. It will change the bond angle from 180 deg to 109.5 deg. What effect that will have on the taste receptors I have no idea. DB can also be cleaved using O3 and dimethyl sulfide......just thoughts
