Block copolymers for stable micelles
View Patent ↗The present invention relates to the field of polymer chemistry and more particularly to multiblock copolymers and micelles comprising the same. Compositions herein are useful for drug-delivery applications.
1. A micelle comprising a triblock copolymer, wherein said micelle has a drug-loaded inner core, a crosslinked outer core, and a hydrophilic shell, wherein the triblock copolymer is of formula VII:
wherein:
n is 20-500;
m is 1 or 2;
x 1 is 1-20;
x 2 is 0-20;
y is 5 to 100;
R y is selected from one or more natural or unnatural amino acid side chain groups such that the overall block is hydrophobic;
M is a metal ion;
R T is OCH 3 ; and
wherein the drug is a molecularly targeted therapeutic.
2. The micelle according to claim 1 , wherein the drug is a tyrosine kinase inhibitor.
3. The micelle according to claim 1 , wherein the drug is:
4. The micelle according to claim 1 , wherein the drug is: