Abstract
A synthesis is described of [1‐D‐serine, 17, 18‐dilysine]‐β‐corticotropin‐(1–18)‐octadecapeptide amide (I), a short chain ACTH analogue which has been found to possess in animals and also in man high and prolonged corticotropic activity. Synthesis was carried out by the fragment condensation approach involving, in the last build‐up step, coupling of the protected sequences 1–10 and 11–18. From the protected octadecapeptide derivative 1–18 the free peptide was obtained in high yield by acidolysis.