Main Reaction: Nicotinamide >> Nicotinic acid

Reference: PubMed ID: 4288535
Authors: Waller GR, Yang KS, Gholson RK, Hadwiger LA, Chaykin S
Title: The pyridine nucleotide cycle and its role in the biosynthesis of ricinine by Ricinus communis L.
Published: 1966 Oct 10

Nicotinamide --> Nicotinic acid