Acetylene group-containing poly(alkylene oxide, oxyethylated polyol or olefinic alcohol)
AssigneeAmbrx, Inc.
InventorTroy E. Wilson
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Abstract
The invention provides water-soluble compounds that include a polymer and at least one terminal azide or acetylene moiety. Also provided are highly efficient methods for the selective modification of proteins with PEG derivatives, which involves the selective incorporation of non-genetically encoded amino acids, e.g., those amino acids containing an azide or acetylene moiety, into proteins in response to a selector codon and the subsequent modification of those amino acids with a suitably reactive PEG derivative.
Claims20
A water-soluble compound comprising a polymer having at least one terminal acetylene moiety, wherein said polymer is selected from the group consisting of poly(alkylene oxides), poly(oxyethylated polyols), and poly(olefinic alcohols), wherein said polymer has a molecular weight selected from the group consisting of between about 6,000 and about 80,000;
- between about 6,000 and 20,000;
- between about 80,000 and about 100,000;
- about 6,000;
- about 20,000;
- about 80,000;
- and about 100,000.
A water soluble activated polymer that is stable against hydrolysis, said activated polymer having the formula:
- R—CH2CH2—(OCH2CH2)n—C≡CH
- wherein n is from about 5 to 3,000, and R is a capping group, a functional group, or a leaving group that can be the same or different from the acetylene.
Dependencies are inferred from the claim text.