会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 22. 发明授权
    • Sustained-release preparation
    • 缓释制剂
    • US5668111A
    • 1997-09-16
    • US471382
    • 1995-06-06
    • Shigeru KameiYasutaka IgariYasuaki Ogawa
    • Shigeru KameiYasutaka IgariYasuaki Ogawa
    • A61K9/52A61K20060101A61K9/16A61K9/22A61K9/50A61K38/04A61K38/09A61K38/12A61K47/34A61K47/42C07K7/23A61K38/00C08G63/08
    • C07K7/23A61K38/09A61K9/1647A61K38/00
    • A sustained-release preparation which comprises a physiologically active peptide of general formula ##STR1## wherein X represents an acyl group; R.sub.1, R.sub.2 and R.sub.4 each represents an aromatic cyclic group; R.sub.3 represents a D-amino acid residue or a group of the formula ##STR2## wherein R.sub.3 ' is a heterocyclic group; R.sub.5 represents a group of the formula --(CH.sub.2).sub.n --R.sub.5 ' wherein n is 2 or 3, and R.sub.5 ' is an amino group which may optionally be substituted, an aromatic cyclic group or an O-glycosyl group;R.sub.6 represents a group of the formula --(CH.sub.2).sub.n --R.sub.6 ' wherein n is 2 or 3, and R.sub.6 ' is an amino group which may optionally be substituted;R.sub.7 represents a D-amino acid residue or an azaglycyl residue; andQ represents hydrogen or a lower alkyl group, or a salt thereof and a biodegradable polymer having a terminal carboxyl group.The sustained-release preparation shows a constant release of the peptide over a long time and is substantially free from an initial burst.
    • 包含通式的生理活性肽的缓释制剂含有酰基; R1,R2和R4各自表示芳族环状基团; R 3表示D-氨基酸残基或式(D)的基团,其中R 3'为杂环基; R5表示式 - (CH2)n-R5'的基团,其中n为2或3,R5'为任选取代的氨基,芳族环基或O-糖基; R6表示式 - (CH2)n-R6'的基团,其中n为2或3,R6'为可任意取代的氨基; R7表示D-氨基酸残基或氮杂十八烷基残基; Q表示氢或低级烷基,或其盐和具有末端羧基的生物降解性聚合物。 持续释放制剂显示长时间的肽的恒定释放并且基本上没有初始爆发。