title: Efficient Synthesis of 2,11,20-Triaza[3.3.3](2,6)pyridinophane.
authors.affiliation: Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812, Japan.
authors.forename: Geunsu
authors.initials: G
authors.lastname: Lee
authors.forename: Masakazu
authors.initials: M
authors.lastname: Oka
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Takemura
authors.forename: Yuji
authors.initials: Y
authors.lastname: Miyahara
authors.forename: Nobujiro
authors.initials: N
authors.lastname: Shimizu
authors.forename: Takahiko
authors.initials: T
authors.lastname: Inazu