Patent ID: 9683081
Date: 2017-06-20
CPC Classifications: A61K,A61P,C07D,C07K,C08G

Claim:
1. A β-polypeptide comprising: internal subunits having a structure selected from the group consisting of: wherein R 3 , R 4 , R 5 , and R 6 are each independently selected from the group consisting of hydrogen, substituted or unsubstituted C 1 -C 6 -alkyl, aryl, C 1 -C 6 -alklyaryl, amino, protected-amino, amino-C 1 -C 6 -alkyl, and protected-amino-C 1 -C 6 -alkyl; and wherein A together with the carbon atoms to which it is attached is selected from the group consisting of substituted or unsubstituted C 5 -C 12 cycloalkyl, C 5 -C 12 cycloalkenyl, and five- to twelve-membered heterocyclic; wherein at least one of the internal subunits has a structure of: wherein at least one of R a terminal subunit selected from the group consisting of: wherein R 3 , R 4 , R 5 , and R 6 in the terminal subunit are each independently selected from the group consisting of hydrogen, substituted or unsubstituted C 1 -C 6 -alkyl, aryl, C 1 -C 6 -alklyaryl, amino, protected-amino, amino-C 1 -C 6 -alkyl, and protected-amino-C 1 -C 6 -alkyl and A in the terminal subunit is as previously defined.