Desmopressin EP Impurity B

Chemical Name: 3-((4R,7S,10S,13S,16S)-7-(2-Amino-2-oxoethyl)-4-((S)-2-(((R)-1-((2-amino-2-oxoethyl)amino)-5-guanidino-1-oxopentan-2-yl)carbamoyl)pyrrolidine-1-carbonyl)-13-benzyl-16-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosan-10-yl)propanoic acid

Synonym: Glu(4)-Desmopressin

Smile: OC1=CC=C(C=C1)C[C@H](NC(CCSSC[C@H](NC([C@H](CC(N)=O)NC([C@H](CCC(O)=O)NC([C@H](CC2=CC=CC=C2)N3)=O)=O)=O)C(N4[C@@H](CCC4)C(N[C@H](CCCNC(N)=N)C(NCC(N)=O)=O)=O)=O)=O)C3=O