N- and O-Alkylation of isoquinolin-1-ones in the Mitsunobu reaction: development of potential drug delivery systems
作者:Sandra Ferrer、Declan P. Naughton、Ifat Parveen、Michael D. Threadgill
DOI:10.1039/b109776h
日期:2002.1.23
Regioselective methods were investigated to prepare N- and O-alkylated isoquinolin-1-ones efficiently. The predicted regioselective alkylation of the nitrogen with (hetero)benzyl halides was complemented using (hetero)benzylic Mitsunobu electrophiles to alkylate predominantly at the oxygen. A series of drug-delivery conjugates was prepared demonstrating control over the site of alkylation. The Mitsunobu reaction provides a new approach to 1-alkoxyisoquinolines that were unavailable via previous harsher synthetic methods.
研究了区域选择性方法,以高效制备N-和O-烷基化的异喹啉-1-酮。通过使用(杂)苄基 Mitsunobu 亲电试剂,补充了氮的区域选择性烷基化,主要在氧处进行烷基化。制备了一系列药物输送偶联物,展示了烷基化位点的控制。Mitsunobu 反应为通过先前较为苛刻的合成方法无法获得的1-烷氧基异喹啉提供了一种新途径。