cyclo[Ala-Pro-PheΨ{(C=S)NH}-Ser-Thr(rprenyl)-Ser(rprenyl)Ile]
Fmoc-Ala-Pro-Phe-D-Ser(TBS)-Thr(rprenyl)-Ser(rprenyl)-Ile-OMe
cyclo[Ala-Pro-PheΨ{(C=S)NH}-D-Ser-Thr(rprenyl)-Ser(rprenyl)-Ile]
cyclo[Ala-Pro-D-PheΨ{(C=S)NH}-Ser-Thr(rprenyl)-Ser(rprenyl)-Ile]
cyclo[Ala-Pro-D-PheΨ{(C=S)NH}-D-Ser-Thr(rprenyl)-Ser(rprenyl)-Ile]