摘要:
A method of diversification of human milk oligosaccharides (HMOs) or precursors thereof, compounds obtainable by the method, and uses and compositions involving such compounds. The method comprises a) providing at least one compound or a mixture of the compounds selected from the group consisting of: optionally sialylated and/or fucosylated lactose derivatives of general formula 2 and salts thereof; b) adding at least one enzyme comprising a transglycosidase activity to the at least one compound or a mixture of compounds provided according to step a); and c) incubating the mixture obtained according to step b).
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. A method for the preparation of a carbohydrate-peptide conjugate includes reacting a cyclic carbamate with a peptide which has at least one primary amino group.
摘要:
A compound of the formula (1) wherein R1 is a group removable by hydrogenolysis, and wherein R2 is OH or R2 is —NHR3 wherein R3 is a group removable by hydrogenolysis. The compound can be made from fructose by a Heyns-rearrangement. The compound can be used then to make free D-mannosamine or its salts, D-mannosamine building blocks and mannosamine containing oligo- or polysaccharides, N-acetyl-D-mannosamine and its hydrates and solvates, neuraminic acid derivatives, and viral neuraminidase inhibitors.
摘要:
The present invention relates to an improved synthesis of a trisaccharide of the formula, novel intermediates used in the synthesis and the preparation of the intermediates.
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:
The invention relates to crystalline polymorphs of lacto-N-tetraose (LNT) and methods for making the same for use in pharmaceutical compositions, nutritional formulations and food supplements.
摘要:
The present invention relates to the field of recombinant production of biological molecules in host cells. More particularly it relates to a method for recombinant production of human milk oligosaccharides (HMO) using a genetically modified cell expressing a protein of the major facilitator superfamily (MFS).
摘要:
A human milk oligosaccharide (HMO) or a synthetic composition comprising said HMO, for use in increasing the abundance, particularly the relative abundance, of a Bifidobacterium of the B. adolescentis phylogenic group in the microbiota in the gastro-intestinal tract of a human, preferably a non-infant human. The HMO(s) and/or synthetic composition is useful in; increasing particularly the relative abundance of B. adolescentis and/or B. pseudocatenulatum; for treating or preventing in said non-infant human with type 2 diabetes and/or obesity; an enteropathogenic infection; impaired gut barrier function and/or; an inflammation related to gastro¬intestinal condition, preferably irritable bowel disease (IBD) or irritable bowel syndrome (IBS); as a nutritional composition. The HMO is a fucosylated neutral HMO, a non-fucosylated neutral HMO, or a mixture of a fucosylated and a non-fucosylated neutral HMO. The HMOs comprises 2′-fucosyllactose (preferred), 2′-fucosyllactose (preferred), 3-fucosyllactose, difucosyllactose (preferred), lacto-N-fucopentaose, fucosyl-lacto-N-hexaose, fucosyl-para-lacto-N-hexaose, lacto-N-tetraose (preferred), lacto-N-neotetraose (preferred), lacto-N-hexaose, lacto-N-neohexaose, para-lacto-N-hexaose and para-lacto-N-neohexaose.
摘要:
It is provided i) an amorphous carbohydrate with improved chemical stability and/or physical features, ii) a method for producing an amorphous carbohydrate with improved chemical stability and/or physical features, and iii) a method for improving the chemical stability and/or the physical features of an amorphous carbohydrate.
摘要:
The present invention relates to the field of recombinant production of biological molecules in genetically modified cells. More particularly, it relates to a method for recombinant production of human milk oligosaccharides (HMO) using a genetically modified cell expressing a protein of the major facilitator superfamily (MFS), the protein expressed being Bad.