摘要:
Compounds having a general formula X-(A)n-Y, wherein: n varies between 6 and 20; X denotes a hydrogen atom, an RaCO, RaOCO, RaNHCO or RaSO2 group, Ra being an alkyl, alkenyl, alkynyl, aryl, aralkyl, heteroaryl group, the groups being substituted or not, on condition that X is different from H when n is equal to 6; A denotes either a group having formula (I) or (II), wherein Ri is a hydrogen atom, an amino acid side chain, an alkyl, alkenyl, alkynyl, aryl, aralkyl or heteroaryl group, said groups being substituted or not, i being an integer of between 1 and n; Y is an NRbRc, Rb and Rc group having the same meaning as given earlier for Ra. The compounds are used for the preparation of medicaments that are intended to treat bacterial, fungal or cytotoxic diseases and, in particular, fungal infections, such as aspergillosis and candidiasis, and resistant bacterial infections.
摘要:
The present invention discloses a method of purifying bivalent antibodies or antibody fragments that are active at both Fab sites from a source of antibodies or antibody fragments using a non-chromatographic method that includes inducing the formation of cyclic immunoglobulin aggregates by addition of multivalent hapten to a salt solution of soluble antibodies or antibody fragments, wherein the multivalent hapten possesses a linker between the two haptens effective to prevent the binding of both haptens of the ligand to the same antibody or antibody fragment.
摘要:
A series of methods, compositions, and articles for patterning a surface with multiple, aligned layers of molecules, by exposing the molecules to electromagnetic radiation is provided. In certain embodiments, a single photomask acts as an area-selective filter for light at multiple wavelengths. A single set of exposures of multiple wavelengths through this photomask may make it possible to fabricate a pattern comprising discontinuous multiple regions, where the regions differ from each other in at least one chemical and/or physical property, without acts of alignment between the exposures. In certain embodiments, the surface includes molecules attached thereto that can be photocleaved upon exposure to a certain wavelength of radiation, thereby altering the chemical composition on at least a portion of the surface.
摘要:
Compounds having a general formula X-(A)n-Y, wherein: n varies between 6 and 20; X denotes a hydrogen atom, an RaCO, RaOCO, RaNHCO or RaSO2 group, Ra being an alkyl, alkenyl, alkynyl, aryl, aralkyl, heteroaryl group, the groups being substituted or not, on condition that X is different from H when n is equal to 6; A denotes either a group having formula (I) or (II), wherein Ri is a hydrogen atom, an amino acid side chain, an alkyl, alkenyl, alkynyl, aryl, aralkyl or heteroaryl group, said groups being substituted or not, i being an integer of between 1 and n; Y is an NRbRc, Rb and Rc group having the same meaning as given earlier for Ra. The compounds are used for the preparation of medicaments that are intended to treat bacterial, fungal or cytotoxic diseases and, in particular, fungal infections, such as aspergillosis and candidiasis, and resistant bacterial infections.
摘要:
Process for the preparation of stable activated derivatives of carbamic acid, comprising at least one protected amino group and an activated carbamic acid function, from an amino acid derivative in which the amino group is protected. The process includes: a) a step of transformation of the —COOH group of the amino acid derivative into a —CON3 group to obtain an acyl azide; b) a step of transformation of the —CON3 group of the acyl azide into a —NCO group to obtain an isocyanate; c) a step of treating the isocyanate to obtain a stable derivative of carbamic acid.
摘要翻译:由保护氨基的氨基酸衍生物制备稳定的氨基甲酸活化衍生物的方法,其包括至少一种被保护的氨基和活性的氨基甲酸功能。 该方法包括:a)将氨基酸衍生物的-COOH基团转化为-CON 3 N 3基团以获得酰基叠氮化物的步骤; b)将酰基叠氮化物的-CON 3 N 3基团转化为-NCO基团以获得异氰酸酯的步骤; c)处理异氰酸酯以获得稳定的氨基甲酸衍生物的步骤。