ChemInform Abstract: Diversity‐Oriented Reconstruction of Primitive Diketopiperazine‐Fused Tetrahydro‐β‐carboline Ring Systems via Pictet—Spengler/Ugi‐4CR/Deprotection‐Cyclization Reactions. Issue 17 (April 2016) - Khan, Irfan; Khan, Shahnawaz; Tyagi, Vikas; Chouhan, Pradeep Singh; Chauhan, Prem M. S.