(S)-1-tert-Butyl 5-(2,5-dioxopyrrolidin-1-yl) 2-(18-(tert-butoxy)-18-oxooctadecanamido)pentanedioate

After coupling, the protecting groups are removed in downstream processing. (S)-1-tert-Butyl 5-(2,5-dioxopyrrolidin-1-yl) 2-(18-(tert-butoxy)-18-oxooctadecanamido)pentanedioate is a protected fatty-acid linker intermediate used in peptide API synthesis.The molecule contains an activated N-hydroxysuccinimide (NHS) ester, enabling efficient acylation of peptide amino groups, while tert-butyl protecting groups provide stability and selectivity during multistep synthesis.

API Name Insulin degludec
CAS No 1188328-22-4
Molecular Formula C35H60N2O9
Molecular Weight 652.9 g/mol
Synonyms 1-O-tert-butyl 5-O-(2,5-dioxopyrrolidin-1-yl) (2S)-2-[[18-[(2-methylpropan-2-yl)oxy]-18-oxooctadecanoyl]amino]pentanedioate