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Síntese de amidas e sulfonamidas de d-galactopiranosilamina e lactosilamina e a...
Butera, Anna Paola; Souza Filho, José Dias de; Carvalho, Diogo Teixeira; Figueiredo, Rute Cunha; Faria, Luiz Carlos Alves deWe report herein the synthesis of some -D-galactopyranosylamine and -lactosylamine amides and sulfonamides. The interactions of these compounds with lectins from the seeds of Erythrina cristagalli (LEC) and Ricinus communis (RCA120) were evaluated in a hemagglutination inhibitory activity assay. D-Galactose and lactose were used as reference compounds. The -lactosylamine amides and sulfonamides were nearly a...
Síntese de b-D-galactopiranosídeos de arila diméricos para avaliação de sua int...
Figueiredo, Rute Cunha; Meyer, Nádia Burkowski; Prado, Maria Auxiliadora Fontes; Rojo Marcos, Francisco JavierThe synthesis of two new D-galactose-based dimers having a 1,4-butanediamine spacer is reported aiming at the evaluation of their interaction with the Erythrina cristagalli lectin. The title compounds were prepared in four and five steps from 2,3,4,6-tetra-O-acetyl-b-D-galactopyranoside bromide, in 20 % and 15 % overall yield, respectively, using the Doebner modification of the Koenavenagel reaction as the key ...