TY - JOUR N1 - Copyright of this article belongs to Elsevier Science. ID - open798 UR - http://dx.doi.org/10.1016/S0040-4039(99)00989-2 IS - 27 A1 - Thakur, A K A1 - Kishore, Raghuvansh Y1 - 1999/// N2 - In marked contrast to the most favourable folded conformation, predicted from ab initio quantum mechanical calculations, the crystal structure analysis of the model system incorporating ?CONH?CH2?CH2?CONH? moiety, revealed the existence of an all-anti conformation, characterized by the backbone torsion angles: ? ? ?146°, ? ? 172° and ? ? 155°. Potential applications of the residue to form highly ordered, novel ?-sheet like structure(s) with distinct faces have been suggested. PB - Elsevier Science JF - Tetrahedron Letters VL - 40 SN - 00404039 TI - An all-anti conformation of the ?-ala moiety in the crystalline state SP - 5091 AV - restricted EP - 5094 ER -