1. Njardarson group. Top 200 Brand Name Drugs by Retail Sales in 2015 https://njardarson.lab.arizona.edu/content/top-pharmaceuticals-poster as of January 2020.
2. Selected representative books and reviews see:
3. R. C. Larock inComprehensive Organic Transformations: a Guide to Functional Group Preparation; Wiley-VHC New York 1989;
4. A. Ricci inModern Amination Method Wiley-VCH Verlag GmbH & Co. KGaA Weinheim: New York 2000;
5. S. A. Lawrence inAmines: Synthesis Properties and Applications Cambridge University Press Cambridge 2004;