The purity analysis of the peptides was conducted on RP-HPLC system Prominence-i (Shimadzu Corp., Kyoto, Japan) by using an analytical Delta-Pak (Waters) C18 column (100 Å, 5 μm, 3.9 mm × 150 mm). The mass of the purified peptides was determined in positive ion mode using EVOQ Triple Quadrupole LC-TQ (Q-Tof, Bruker, USA). The purity (>95%) and high-resolution mass data of all cyclic peptides and their linear analogs have been provided as supporting information.