Universitetet I Oslo

Ole Petter Ottersen

Jo Klaveness

Pal Rongved

Mahmood Amiry-Moghaddam

Oyvind Jacobsen

A peptide comprising a unit of formula (I) and having a molecular weight of less than 2000 wherein each X is independently an organic group, e.g. a Calkyl or Calkenyl group, preferably &#x2014;CH&#x2014;CH&#x2550;CH, or the two X groups taken together can form a covalent or non-covalent link between the two O groups, preferably a Csaturated or unsaturated carbon chain optionally interrupted by one or more heteroatoms selected from O, S, N, P, or Si, especially a Ccarbon chain or one X represents an azido group and the other an C2-6-alkynyl group; both Z's are the same and are O or S; each Y is independently C, CH, CH, N or NH; Ris H or Calkyl; Ris H or Calkyl; Ris a Calkyl group, preferably isopropyl; or a salt, ester or prodrug thereof. 

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Oslo, Norway

Ole Petter Ottersen