title: N-(L-2-Aminobutyryl)-L-alanine and 2-(L-alanylamino)-L-butyric acid 0.33-hydrate.
abstract: The crystal structure of N-(L-2-aminobutyryl)-L-alanine, C(7)H(14)N(2)O(3), is closely related to the structure of L-alanyl-L-alanine, both being tetragonal, while the retro-analogue 2-(L-alanylamino)-L-butyric acid 0.33-hydrate, C(7)H(14)N(2)O(3).0.33H(2)O, forms a new type of molecular columnar structure with three peptide molecules in the asymmetric unit.
authors.affiliation: Department of Chemistry, University of Oslo, PO Box 1033, Blindern, N-0315 Oslo, Norway. c.h.gorbitz@kjemi.uio.no
authors.forename: Carl Henrik
authors.initials: CH
authors.lastname: Görbitz
mesh_terms: D000409:Alanine / Q000031:analogs & derivatives / Q000737:chemistry*; D002087:Butyrates / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004151:Dipeptides / Q000737:chemistry*; D006860:Hydrogen Bonding; D008958:Models, Molecular
chemical_list: C467525:2-(alanylamino)-butyric acid; D002087:Butyrates; D004151:Dipeptides; C467524:N-(2-aminobutyryl)-alanine; D000409:Alanine