The present invention provides a hydrophobic group-introduced hyaluronic acid derivative comprising at least one repeating unit represented by the formula (I):
wherein R
1
, R
2
, R
3
, R
4
, Z, n, Ra, Y, and X
1
are as defined in the specification.
本发明提供了一种含有疏
水基引入的透明质酸衍
生物,其包括至少一个由式(I)表示的重复单元,其中R1、R2、R3、R4、Z、n、Ra、Y和X1如规范中所定义。