Compound 4

(1aS,3aR,4aS,6aR,7aS,9aR)-2,5,8-Tris(4-methoxybenzyl)-1a,2,3a,4,4a,5,6a,7,7a,8-decahydro-1H-2,5,8-triazatricyclopenta[def,jkl,pqr]triphenylene-3,6,9(9aH)-trione

From: Enantioselective synthesis of a chiral nitrogen-doped buckybowl