| abstract |
In the present invention, formula (1) {wherein a is an integer of 1 to 10, more preferably 1 to 3; b is an integer of 0 to 7; Z is a terminal group, and Y is 2 The peptide modifier compound or a salt thereof. Further aspects of the invention relate to intermediates in the preparation of compounds of formula (1) and the use of compounds of formula 1 in the synthesis of peptide derivatives. |