Main Reaction: cinnamic acid >> p-coumaric acid

Reference: PubMed ID: 23398045
Authors: Dare AP, Tomes S, Jones M, McGhie TK, Stevenson DE, Johnson RA, Greenwood DR, Hellens RP
Title: Phenotypic changes associated with RNA interference silencing of chalcone synthase in apple (Malus × domestica).
Published: 2013 May

cinnamic acid --> p-coumaric acid