Desmopressin EP Impurity A

Chemical Name: ((4R,7S,10S,13S,16S)-7-(2-amino-2-oxoethyl)-10-(3-amino-3-oxopropyl)-13-benzyl-16-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)-L-prolyl-D-arginylglycine

Smile: O=C(O)CC[C@H](NC([C@H](CC1=CC=CC=C1)NC([C@H](CC2=CC=C(O)C=C2)N3)=O)=O)C(N[C@@H](CC(N)=O)C(N[C@H](C(N4[C@H](C(N[C@H](CCCNC(N)=N)C(NCC(N)=O)=O)=O)CCC4)=O)CSSCCC3=O)=O)=O