Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Fifteen macrocycles ranging from 11 to 26 atoms, containing two tryptamine units connected by an acyl chain between the N(b) and N(b′) atoms and a (poly)methylene linker (or a bond) between C(2) or C(6′), were prepared by two different procedures.
![N,N'-bis[2-(1H-indol-3-yl)ethyl]butanediamide结构式](https://image.chemsrc.com/caspic/484/96234-78-5.png)