Scyliorhinin II

O=C1N2[C@@](C(N[C@H](C(NCC(N3[C@](CCC3)([H])C(N[C@H](C(N[C@@H](CSSC[C@@H]1NC([C@H](CCCCN)NC([C@H](CO)NC([C@H](CC(N)=O)NC([C@H](CO)NC([C@H]4N(CCC4)C([C@@H](N)CO)=O)=O)=O)=O)=O)=O)C(N[C@H](C(N[C@@H](C(C)C)C(NCC(N[C@@H](CC(C)C)C(N[C@H](C(N)=O)CCSC)=O)=O)=O)=O)CC5=CC=CC=C5)=O)=O)CC(O)=O)=O)=O)=O)CC(O)=O)=O)([H])CCC2

[1]Buck SH, et al. The dogfish peptides scyliorhinin I and scyliorhinin II bind with differential selectivity to mammalian tachykinin receptors. Eur J Pharmacol. 1987 Nov 24;144 (1) :109-11.|[2]Raffa RB, et al. Scyliorhinin-I and -II induce reciprocal hindlimb scratching in mice: differentiation of spinal and supraspinal neurokinin receptors in vivo. Neurosci Lett. 1993 Aug 6;158 (1) :87-91.