[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C@H1][C][=Branch1][C][=O][N][C@H1][Branch2][Branch1][=Branch2][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][N][C@H1][Branch2][Ring1][P][C][=Branch1][C][=O][N][C@H1][Branch1][=N][C][=Branch1][C][=O][N][Ring2][Ring1][Ring2][C][Ring2][Ring1][#Branch1][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a homodetic cyclic peptide composed of glycyl, L-phenylalanyl, L-tyrosyl, L-prolyl and L-phenylalanyl residues joined sequentially to give a 15-membered macrocycle. Isolated from Dianthus superbus var longicalycinus, it exhibits anti-cancer activity. It has a role as a metabolite and an antineoplastic agent. It is a homodetic cyclic peptide and a macrocycle."}]