Amino-PEG5-Boc 2743 Smiles: C[C@]12C=C(O)C(=O)C(C)=C1C[C@H]1OC(=O)[C@H](OC(=O)CC(C)C)[C@H]3[C@@]4(OC[C@]13[C@@H]2[C@@H](O)[C@@H]4O)C(=O)OC
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