Main Reaction: Cinnamic acid >> 4-Coumaric acid

Reference: PubMed ID: 15770480
Authors: Miyahisa I, Kaneko M, Funa N, Kawasaki H, Kojima H, Ohnishi Y, Horinouchi S
Title: Efficient production of (2S)-flavanones by Escherichia coli containing an artificial biosynthetic gene cluster.
Published: 2005 Sep

Cinnamic acid --> 4-Coumaric acid