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Ein anderer Weg zu Peptid‐α‐thioestern führt über die Peptidbindungsspaltung an einem Cysteinrest durch S‐Thiocarbonylierung und die anschließende Behandlung mit N‐Acetylguanidin. Das erhaltende Peptidyl‐N‐acetylguanidin kann in den entsprechenden α‐Thioester überführt oder als Alternative zu einem Peptid‐α‐Thioester verwendet werden. Diese Methode ermöglicht eine effiziente kinetisch kontrollierte...
A different route to peptide α‐thioesters through a new peptide‐bond‐cleavage method at a cysteine residue by S‐thiocarbonylation and subsequent treatment with N‐acetylguanidine is described (see scheme). The resultant peptidyl‐N‐acetylguanidine can be converted into the corresponding peptide α‐thioester and is also usable as an alternative to a peptide α‐thioester. This method allows efficient kinetically...
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