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    • 1. 发明申请
    • DEXTRAN FUNCTIONALIZED BY HYDROPHOBIC AMINO ACIDS
    • 由疏水性氨基酸功能化的地西泮
    • US20120041079A1
    • 2012-02-16
    • US13250803
    • 2011-09-30
    • Gerard SOULAOlivier SoulaRemi SoulaRichard Charvet
    • Gerard SOULAOlivier SoulaRemi SoulaRichard Charvet
    • A61K47/36C07H15/18C07H15/04C07H17/02
    • A61K31/721A61K47/36C08B37/0021
    • Dextran of the following general formula I: is described, wherein R represents a chain containing from 1 to 15 carbon atoms and having at least one acid functional group prior to attachment to AA, the chain optionally being branched and/or unsaturated and containing one or more heteroatoms, such as O, N or/and S, F represents an ester, a carbamate or an ether, AA represents a hydrophobic amino acid radical, L or D, derived from a coupling between an amine of an amino acid and at least one acid functional group of R; the amino acid, prior to attachment to R, being selected from the group consisting of tryptophan, phenylalanine, leucine, isoleucine, alanine and valine, and alcohol, amide or decarboxylated derivatives thereof, and alkaline cation salts thereof, i represents the molar fraction of substituent F—R-[AA]n per glycosidic unit and is from 0.1 to 2, n represents the molar fraction of R groups substituted by AA and is from 0.05 to 1, and wherein for R groups not substituted by AA, the acid(s) of the group R are alkaline cation carboxylates such as Na or K.
    • 描述了以下通式I的葡聚糖,其中R表示含有1至15个碳原子并且在与AA连接之前具有至少一个酸官能团的链,该链任选是支链和/或不饱和的,并且含有一个或 更多的杂原子,例如O,N或/和S,F代表酯,氨基甲酸酯或醚,AA代表疏水性氨基酸基团,L或D衍生自氨基酸的胺与至少 一个酸官能团的R; 氨基酸在与R连接之前选自色氨酸,苯丙氨酸,亮氨酸,异亮氨酸,丙氨酸和缬氨酸,以及其醇,酰胺或其脱羧基衍生物及其碱性阳离子盐,i表示 取代基F-R- [AA] n,为0.1〜2,n表示被AA取代的R基的摩尔分数,为0.05〜1,对于不被AA取代的R基,酸( 的基团R是碱性阳离子羧酸盐,例如Na或K.