Bispidin-9,9-diol Analogues of Cisplatin, Carboplatin, and Oxaliplatin: Synthesis, Structures, and Cytotoxicity
作者:Huiling Cui、Richard Goddard、Klaus-Richard Pörschke、Alexandra Hamacher、Matthias U. Kassack
DOI:10.1021/acs.inorgchem.5b02855
日期:2016.3.21
3]dioxolane] (12; 35%). The ketal crystallizes in the forms of anhydrous 12a and the dihydrate 12b. The molecules in anhydrous 12a are linked to each other, forming N1–H1···N2–H2···N1* hydrogen-bond chiral helices of alternating chirality. In the dihydrate 12b, the ketal molecules are connected to a central string of water molecules by O3–H···O1 and O4–H···N1 hydrogen bonds, but not to themselves. Reaction
3,7-二烯丙基-双嘧啶-9-一(6)(bispidin-9-one = 3,7-二氮杂双环[3.3.1] nonan-9-one)被转化为N-未取代的螺环[bispidin-9,2 ′-[1,3]二氧戊环](12; 35%)。缩酮以无水12a和二水合物12b的形式结晶。无水12a中的分子相互连接,形成具有手性交替的N1-H1···N2-H2···N1 *氢键手性螺旋。在二水合物12b中,缩酮分子通过O3-H··O1和O4-H···N1氢键连接到水分子的中心串,但不相互连接。的反应12用(1,5-己二烯)氯铂酸2得到几乎定量的螺[bispidin-9,2'-[1,3]二氧戊环] PtCl 2(13)。裂解缩酮以回收酮产生双生二醇(bispidin-9,9-diol)PtCl 2(14 ; 85%)。化合物14与Ag 2 cbdca(cbdca = 1,1-环丁烷二羧酸酯)反应生成二水合物(bispidin-9