摘要:
A 1,2-dideoxy-1,2-diamino oligosaccharide or polysaccharide in its free base, salt or metal-complex form as shown in General Formula 1 and derivative thereof is described. R1, R2 and R3 are each independently selected from the group consisting of H and a carbohydrate moiety, with the proviso that at least one of the groups R1, R2 or R3 is a carbohydrate moiety; R4 is selected from the group consisting of: H, optionally substituted C1-20-alkyl, optionally substituted heteroalkyl, optionally substituted C2-20-alkenyl, optionally substituted C2-20-alkynyl, optionally substituted C3-10-cycloalkyl, optionally substituted heterocyclyl, optionally substituted aryl, and optionally substituted heteroaryl.
摘要:
Lactosamine derivatives and related methods suitable for the preparation, including large-scale production, of N-acetyllactosamine, lactosamine, numerous lactosamine salts and a number of lactosamine-containing oligosaccharides are provided.
摘要:
α-Lactosamine hydrochloride, substantially free of β-lactosamine hydrochloride; a method of preparing α-lactosamine hydrochloride monohydrate from an anomeric mixture of lactosamine hydrochloride, including: preparing a solution including the anomeric mixture of lactosamine hydrochloride, water and at least one water-miscible organic solvent at a temperature of 0-100° C., and cooling the solution to cause crystallisation of α-lactosamine hydrochloride monohydrate; a method of preparing anhydrous α-lactosamine hydrochloride; and use of α-lactosamine hydrochloride as a food supplement or intermediate in synthesis.
摘要:
The present application discloses novel glycoproteins and a related glycosylcarbamoylation methodology suitable for the preparation of glycopeptides (in particular glycoproteins and glycosylated cells), as well as the use of such glycoproteins in medicine, e.g. as pharmaceuticals and diagnostics or in diagnostic kits. The method for the preparation of a carbohydrate-peptide conjugate comprises reacting a cyclic carbamate (1) (wherein R3 and R4 are hydroxyl, acetamido, or a carbohydrate moiety; and R5 is hydrogen, methyl, hydroxymethyl, acetamidomethyl, carboxyl, or X—(CH2)r—, wherein X is a carbohydrate moiety and r is an integer selected from 0, 1, 2 and 3) with a peptide comprising at least one primary amino group.
摘要:
The present invention provides novel lactosamine derivatives and related methods suitable for the preparation, including large-scale production, of N-acetyllactosamine, lactosamine, numerous lactosamine salts and a number of lactosamine-containing oligosaccharides. Preferred compounds are: (I) wherein R1 is selected from the group consisting of optionally substituted acyl and optionally substituted alkyloxy-carbonyl; R2 is selected from the group consisting of optionally substituted benzyl, optionally substituted benzhydryl, optionally substituted trityl, and optionally substituted naphthylmethyl (or R2 is hydrogen in the formula to the left); R3 is selected from the group consisting of optionally substituted C1-5-alkyl, optionally substituted heteroalkyl, optionally substituted heterocyclyl, optionally substituted aryl, optionally substituted C2-6-acyl, and hydrogen; and Q1 and Q2 are independently selected from the group consisting of electron withdrawing substituents.
摘要翻译:本发明提供新的乳糖胺衍生物和适合于包括大规模生产N-乙酰基乳糖胺,乳糖胺,许多乳糖胺盐和多种含乳糖胺的寡糖的制备方法。 优选的化合物是:(I)其中R 1选自任选取代的酰基和任选取代的烷氧基 - 羰基; R 2选自任选取代的苄基,任选取代的二苯甲基,任选取代的三苯甲基,和任选取代的萘基甲基(或R2是下式中的氢); R 3选自任选取代的C 1-5 - 烷基,任选取代的杂烷基,任选取代的杂环基,任选取代的芳基,任选取代的C 2-6 - 酰基和氢; 并且Q1和Q2独立地选自吸电子取代基。