发明授权
US08759322B2 Hyaluronic acid derivative and pharmaceutical composition thereof 有权
透明质酸衍生物及其药物组合物

Hyaluronic acid derivative and pharmaceutical composition thereof
摘要:
The present invention provides a hydrophobic group-introduced hyaluronic acid derivative comprising at least one repeating unit represented by the formula (I): wherein R1, R2, R3, R4, Z, n, Ra, Y, and X1 are as defined in the specification.
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