title: A new quadruple hydrogen-bonding module with a DDAA array: formation of a stable homodimer without competition from undesired hydrogen-bonded dimers.
abstract: A new DDAA hydrogen-bonding module (UImp-2), based on a ureidoimidazo[1,2-a]pyrimidine structure, forms a highly stable homodimer (K(dim) > 1.1 x 10(5) M(-1) in CDCl(3)) without competition from undesired hydrogen-bonded dimers.
authors.affiliation: Sagami Chemical Research Center, Hayakawa, Ayase 252-1193, Japan. y_hisamatsu@sagami.or.jp
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Hisamatsu
authors.forename: Naohiro
authors.initials: N
authors.lastname: Shirai
authors.forename: Shin-ichi
authors.initials: S
authors.lastname: Ikeda
authors.forename: Kazunori
authors.initials: K
authors.lastname: Odashima
mesh_terms: D019281:Dimerization; D006860:Hydrogen Bonding; D008968:Molecular Conformation; D011743:Pyrimidines / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D011743:Pyrimidines