Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Synthesis of cyclo[DKP-isoDGR]-PEG-4-Val-Ala-α-amanitin conjugate 11. Reagents and conditions: a) 4-pentynoic acid N-hydroxysuccinimidyl ester, iPr2NEt, DMF, overnight; b) N3-PEG-4-cyclo[DKP-isoDGR], sodium ascorbate, CuSO4·5H2O, DMF/water, rt, overnight.
