Activated polyethylene glycol esters

The present invention relates to the preparation of polyethylene glycol carbonate active esters useful for the PEGylation of biological active and pharmaceutically useful peptides and proteins. The invention involves the use of activated carbonate and oxalate esters in the formation of polyethylene...

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1. Verfasser: TJOENG FOE S
Format: Patent
Sprache:eng
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Zusammenfassung:The present invention relates to the preparation of polyethylene glycol carbonate active esters useful for the PEGylation of biological active and pharmaceutically useful peptides and proteins. The invention involves the use of activated carbonate and oxalate esters in the formation of polyethylene glycol mixed carbonate active esters that then react with a linker or directly with a target peptide or protein.