Smith Gary L N, Nguyen Tam, Powell Douglas R, Taylor Richard W
Acta Crystallogr Sect E Struct Rep Online. 2009 Jul 18;65(Pt 8):o1927. doi: 10.1107/S1600536809026531.
The macrotricyclic title compound, C(36)H(64)N(4)O(14)·2C(6)H(6), is located on a crystallographic center of symmetry. The mol-ecule has four tertiary amide bridgehead atoms and consists of two unsymmetrical 20-membered diaza-tetra-oxamacrocycles (N(2)O(4) donor atom set) connected through the N atoms by two lateral oxydiethyl-ene bridges. The bridging subunits, together with the short bridging strand (NCCOCCN) from each monocycle, define a 24-membered ring (N(4)O(4) donor atom set) that forms a central cavity.
大环三环标题化合物C(36)H(64)N(4)O(14)·2C(6)H(6)位于一个晶体学对称中心上。该分子有四个叔酰胺桥头原子,由两个不对称的20元二氮杂四氧杂大环(N(2)O(4)供体原子集)通过两个横向氧二亚乙基桥经由氮原子连接而成。桥连亚基与每个单环的短桥连链段(NCCOCCN)一起定义了一个形成中心腔的24元环(N(4)O(4)供体原子集)。