Michael (Wayne State University, USA) McKinsey 
Amino Acids: Insights and Roles in Heterocyclic Chemistry [PDF ebook] 
4-volume set

In one place, all the heterocycles from ?-amino acids and the synthetic methods, with detailed mechanistic discussions and experimental procedures. It provides up-to-date information on the challenges in working with ?-amino acids, the protecting groups for the carboxyl, amino and side chain groups, and popular heterocyclic compounds.