1188328-22-4

SemaglutideImpurity8 Semaglutide intermediate 1-(tert-butyl) 5-(2,5-dioxopyrrolidin-1-yl) (18-(tert-butoxy)-18-oxooctadecanoyl)-L-glutamate (S)-22-(methoxycarbonyl)-3,20,25,34-tetraoxo-2,29,32,38,41-pentaoxa-21,26,35-triazatritetracontan-43-oic acid N-[18-(1,1-Dimethylethoxy)-1,18-dioxooctadecyl]-L-glutamic acid 1-(1,1-dimethylethyl) 5-(2,5-dioxo-1-pyrrolidinyl) ester L-Glutamic acid, N-[18-(1,1-dimethylethoxy)-1,18-dioxooctadecyl]-, 1-(1,1-dimethylethyl) 5-(2,5-dioxo-1-pyrrolidinyl) ester