Main Reaction: Cinnamic acid >> p-Coumaric acid

Reference: PubMed ID: 26209615
Authors: Oliva J, Rommel S, Fossdal CG, Hietala AM, Nemesio-Gorriz M, Solheim H, Elfstrand M
Title: Transcriptional responses of Norway spruce (Picea abies) inner sapwood against Heterobasidion parviporum.
Published: 2015 Sep

Cinnamic acid --> p-Coumaric acid