申请人:——
公开号:US20040157795A1
公开(公告)日:2004-08-12
The invention describes new hyaluronan derivatives where the hydroxyl groups are esterified or carbamoylated in amounts ranging from 0.01% to 100% and the carboxyl groups are either totally or partially esterified with alcohols or are in the form of salt.
本发明描述了新的透明质酸衍生物,其中羟基被酯化或氨基甲酰化,含量从 0.01% 到 100% 不等,羧基完全或部分被醇酯化或以盐的形式存在。