Antitumour polycyclic acridines. Palladium(<scp>0</scp>) mediated syntheses of quino[4,3,2-kl]acridines bearing peripheral substituents as potential telomere maintenance inhibitors
作者:Robert A. Heald、Malcolm F. G. Stevens
DOI:10.1039/b305177n
日期:——
triflate-substituted substrates 17 and acrylic acid derivatives afforded quinoacridines with unsaturated side-chains in the 6-position. Alkylboranes, prepared by interaction of 9-borabicyclo[3,3,1]nonane (9-BBN) and allyl acetate or N-allyltrifluoroacetamide, participated in Suzuki-Miyaura reactions with chloro-substituted 8-methylquinoacridines to form derivatives bearing functionalised propyl groups in the
在1-位上带有溴或三氟甲基磺酰氧基取代基的取代的2-(新戊酰氨基)苯硼酸和3,6-二取代的-10-甲基ac啶酮13之间的Pd(0)介导的偶联产生可被环化成的中间体1-芳基rid啶酮16新的8-甲基喹[4,3,2-kl] ac啶17与氯氧化磷或6 M HCl的乙醇溶液。用三氟甲磺酸酯取代的底物17和丙烯酸衍生物之间的heck反应得到在6-位具有不饱和侧链的喹诺啶啶。由9-硼环[3,3,1]壬烷(9-BBN)与乙酸烯丙酯或N-烯丙基三氟乙酰胺相互作用制得的炔烷参加了Suzuki-Miyaura反应,与氯取代的8-甲基喹诺啶啶形成带有官能化丙基的衍生物在6位和10位