We report a dynamic combinatorial library that, upon binding of an electronically- complementary guest, produces in high yield a tetrameric receptor with flat hydrophobic, electron-deficient surfaces and flexible, water-soluble disulfide-containing linkers; analysis of the dependence of library composition on template concentration gives insight into the binding behaviours of the species involved.
![2-[5-(carboxymethoxy)naphthalen-1-yl]oxyacetic acid结构式](https://image.chemsrc.com/caspic/129/92423-99-9.png)