https://pubs.rsc.org/en/Content/ArticleLanding/2014/CC/C4CC06754A
Inducing achiral aliphatic oligoureas to fold into helical conformations - Chemical Communications...
The ability of urea-linked oligomers of achiral diamines (achiral analogues of the well-established chiral oligourea foldamers) to adopt helical conformations...
aliphatic