As one family of basic mechanically interlocked structures,pseudorotaxanes and rotaxanes have become a research area of great interest in recent years.
Calix[n]arenes(mainly with n = 4,6 and 8) are the third generation of macrocyclic host molecules in supramolecular chemistry involving a cyclic array of n pheno
The development of antitumor drugs has been the issue of pharmaceutical industries mainly due to seeking replaceable drugs with more efficient antitumor activit