Cover Feature: Synthesis of Azaspiro Tricyclic Scaffolds through Post‐Ugi Modifications: Scope and Limitation of Aza‐Michael Cyclization (Eur. J. Org. Chem. 10/2023)

The Cover Feature depicts a gradual process for synthesizing complex azaspiro tricyclic scaffolds starting from common building blocks through substrate-selective post-Ugi modifications that involve spirocyclization and aza-Michael addition, which is depicted by analogy with tree. materials are illustrated as the soil nutrients taken up roots to generate Ugi adducts. cover picture was designed Mr. Kazim, Mayur D. Ambule, Mandweep Bhumij, Dr. Ajay Kumar Srivastava. More information can be found in Research Article A. Srivastava et al.