142896-51-3Relevant articles and documents
Synthesis of functionalized pyroglutamic acids, part 1: The synthetic utility of N-acylindole and the ugi reaction with a chiral levulinic acid
Buller, Matthew J.,Gilley, Cynthia B.,Nguyen, Brian,Olshansky, Lisa,Fraga, Breena,Kobayashi, Yoshihisa
experimental part, p. 2244 - 2248 (2009/04/10)
A variety of pyroglutamic acid derivatives are readily synthesized via N-acylindole intermediates obtained by the Ugi reaction. For the preparation of functionalized pyroglutamic acid derivatives, the diastereoselectivity of the Ugi 4-center 3-component c
Tallysomycin, a new antitumor antibiotic complex related to bleomycin. II. Structure determination of tallysomycins A and B
Konishi,Saito,Numata,Tsuno,Asama
, p. 789 - 805 (2007/10/07)
The structures of tallysomycins A and B, two major components of a new antitumor antibiotic complex, have been determined. They are glycopeptide antibiotics structurally related to bleomycin: four amino acid moieties and a disaccharide fragment which are the constituents of bleomycin molecule are also present in the tallysomycins. Tallysomycins A and B contain two new amino acids and a unique amino sugar, 4-amino-4,6-dideoxy-L-talose, which have not been hitherto found in the phleomycin-bleomycin group of antibiotics. In addition tallysomycin A has an additional amino acid, L-β-lysine, and thus a longer peptide chain than bleomycin or tallysomycin B. Tallysomycins A and B have the same terminal amine moiety, spermidine.
