| abstract |
Novel peptide derivatives, compositions containing them, and their use for treating medical disorders resulting from a deficiency in growth hormone are disclosed. The peptides have the formula (1):wherein a, b, A, R1, L1, D, R3, R4, R2, L2, E and G are as defined in the specification. These peptides exhibit improved resistance to proteolytic degradation, and hence, improved bioavailability. |