Y shape branched hydrophilic polymer derivatives, their...

Details Y shape branched hydrophilic polymer derivatives, their... Y shape branched hydrophilic polymer derivatives, their...

2011-08-23

2011-08-23

Vivlemore, Tracy (Department: 1619)

Drug, bio-affecting and body treating compositions

Solid synthetic organic polymer as designated organic active...

Monomer contains oxygen

C525S054100, C525S054200

Reexamination Certificate

active

08003089

ABSTRACT:
The present invention relates to Y-shape branched PEG derivatives of formulae (I) to (IV). The present invention also relates to conjugates of these Y-shape derivatives and drug molecules, pharmaceutical compositions comprising those conjugates.

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