Synthesis and antiproliferative evaluation of 7-aminosubstituted pyrroloiminoquinone derivatives
摘要:
Coupling of five amines on the 7-methoxy-1,3,4,5-tetrahydropyrrolo[4,3,2-de]quinoline core was achieved and afforded, in particular, an opened analogue of the natural alkaloid wakayin. Evaluation of cytotoxic activity of compounds 2, 10-13 on L1210 cells afforded IC50 in the range 0.25-5.3 mu M. (C) 2000 Elsevier Science Ltd. All rights reserved.
A new entry into pyrroloiminoquinone marine alkaloids, makaluvamines, has been developed. The key 1,3,4,5-tetrahydropyrrolo[4,3,2-de]quinoline intermediates 11 and 18 were prepared by aryne-mediated cyclization of the 4-chloro-6-methoxytryptamine derivatives 10 and 17, respectively. The requisite substituents at the indole 4- and 3-positions of 10 and 17 were efficiently assembled by sequential use
已开发出一种新的进入吡咯烷氨基醌海洋生物碱,Makaluvamines。关键的1,3,4,5-四氢吡咯并[4,3,2- de ]喹啉中间体11和18分别通过芳烃介导的4-氯-6-甲氧基色胺衍生物10和17环化而制得。通过依次使用1-三异丙基甲硅烷基-6-甲氧基胍(6)的定向锂化反应和氟离子诱导的4-甲硫基的消除加成反应,可以有效地组装10和17的吲哚4和3位上的必需取代基。氯-1-三异丙基甲硅烷基-6-甲氧基甘氨酸(7)是关键反应。
Convenient syntheses of pyrroloiminoquinone and its lexitropsin-linked derivative
作者:Huiying Wang、Naim H. Al-Said、J.William Lown
DOI:10.1016/s0040-4039(00)73118-2
日期:1994.6
The syntheses of 1–4, pyrroloiminoquinone chromophore and its lexitropsin carrier linked derivative designed to improved cellular uptake are described.