Compound 2

Allyl (4-((2S,5R,8S,11R,14S,17R,20S,23R)-8,20-bis((1H-indol-3-yl)methyl)-14-(4-azidobutyl)-5,11,17,23-tetraisobutyl-3,6,9,12,15,18,21,24-octaoxo-1,4,7,10,13,16,19,22-octaazacyclotetracosan-2-yl)butyl)carbamate

From: Janus cyclic peptide–polymer nanotubes