title: 2,9,12,15,18,25,27,34,37,40,43,50-Dodeca-oxa-56-aza-hepta-cyclo-[24.24.5.1(51,55).0(3,8).0(19,24).0(28,33).0(44,49)]hexa-penta-conta-3,5,7,19(24),20,22,28(33),29,31,44,46,48,51,53,55-penta-deca-ene.
abstract: The title compound, C(43)H(45)NO(12), was prepared from the reaction of 2,6-bis-(dibromo-meth-yl)pyridine and bis-phenol in the presence of caesium carbonate as a base. The central ring makes dihedral angles of 64.83 (6), 13.48 (6), 56.96 (6) and 66.21 (6)° with the peripheral rings. In the crystal, mol-ecules are linked by weak C-H⋯O and C-H⋯π inter-actions, forming a folded structure.
authors.affiliation: Department of Chemistry, Konyang University, Nonsan 320-711,  Republic of Korea.
authors.forename: Jun Hee
authors.initials: JH
authors.lastname: Kim
authors.forename: Il
authors.initials: I
authors.lastname: Yoon
authors.forename: Wonbo
authors.initials: W
authors.lastname: Sim
authors.forename: Jai Young
authors.initials: JY
authors.lastname: Lee