15(S)-HEDE is produced from 11Z,14Z-eicosadienoic acid by 15-LO. 15(S)-HEDE is an inhibitor of RBL-1 cell 5-LO with an IC50 value of 26 μM.1
References
1. Haviv, F., Ratajczyk, J.D., DeNet, R.W., et al. Structural requirements for the inhibition of 5-lipoxygenase by 15-hydroxyeicosa-5,8,11,13-tetraenoic acid analogues J. Med. Chem. 30(2),254-263(1987).