- DiazaChrysenes (DC): Nitrogen-Containing π-Extended Molecules for Photocatalytic C–H Amination
 Wei Xu, Atsushi Iwai, Itsuki Nagasaka, Satsuki Watanabe, Ryosuke Tsutsumi, and Naoya Kumagai*
 Org. Lett. 2025, 27, 10937–10942.  
 Supplementary Cover
- Enlarged-TriQuinoline (Enl-TQ): Disparity in Chemical Behaviors by Geometric Scaling of the Trimeric Quinoline Ring System
 Mai Yamashita, Ryosuke Tsutsumi, Toi Kobayashi, and Naoya Kumagai*
 Chem. Asian J. 2025, 20, e00429.  
 Front Cover
- iso-TEtraQuinoline (i-TEQ): An Inherently Chiral N4 Macrocyclic Quinoline Tetramer
 Ryota Yagami, Wei Xu, Toi Kobayashi, Yuuya Nagata, and Naoya Kumagai*
 Chem. Sci. 2025, 16, 10714–10721. 
 Outside Back Cover
- キノリンを構成単位とする大環状システムの創出と多彩な化学への展開
 (Development of Unique Quinoline–Based Macrocyclic Systems and Strategic Applications in Versatile Chemistry)
 Toi Kobayashi, Wei Xu, and Naoya Kumagai*
 J. Synth. Org. Chem. Jpn. 2025, 83, 386–394. 
- DiQuinoline-MonoQuinazoline: A Flat Proton Binder and Its Application as a Polyaromatic Hydrocarbon Scavenger and G4 Ligand
 Taiga Karimata, Wei Xu, and Naoya Kumagai*
 Chem. Eur. J. 2025, 31, e202404335.
 selected as Hot Paper, Cover Picture  
Exotic Heterocycles