Angiotensin ?

(3S) -3-amino-4-[[ (2S) -1-[[ (2S) -1-[[ (2S) -1-[[ (2S,3S) -1-[[ (2S) -1-[ (2S) -2-[[ (1S) -1-carboxy-2-phenylethyl]carbamoyl]pyrrolidin-1-yl]-3- (1H-imidazol-5-yl) -1-oxopropan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-3- (4-hydroxyphenyl) -1-oxopropan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-5- (diaminomethylideneamino) -1-oxopentan-2-yl]amino]-4-oxobutanoic acid

CC[C@H](C)[C@@H](C(=O)N[C@@H](CC1=CN=CN1)C(=O)N2CCC[C@H]2C(=O)N[C@@H](CC3=CC=CC=C3)C(=O)O)NC(=O)[C@H](CC4=CC=C(C=C4)O)NC(=O)[C@H](C(C)C)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CC(=O)O)N