申请人:Nycomed Imaging AS
公开号:US05574097A1
公开(公告)日:1996-11-12
The invention relates to non-crosslinked non-polypeptide polymers containing biodegradable lipophilic side chains incorporating methylene diester units of the formula --[--CO--O--C(R.sup.1 R.sup.2)--O--CO--]--, where R.sup.1 and R.sup.2 each represents a hydrogen atom or a carbon-attached monovalent organic group or R.sup.1 and R.sup.2 together form a carbon-attached divalent organic group. The lipophilic moieties are biodegradatively cleavable to yield a water-soluble polymer.
本发明涉及一种不交联的非多肽聚合物,其中包含具有生物可降解的亲脂性侧链的亲脂性侧链中包含的公式为--[--CO--O--C(R.sup.1 R.sup.2)--O--CO--]--的亚甲基二酯单元,其中R.sup.1和R.sup.2分别表示氢原子或碳连接的一价有机基团,或R.sup.1和R.sup.2共同形成碳连接的二价有机基团。这些亲脂性基团可以生物降解,生成水溶性聚合物。