Synthesis and evaluation of microtubule assembly inhibition and cytotoxicity of prenylated derivatives of cyclo-l-Trp-l-Pro
摘要:
The synthesis of three isoprenylated derivatives of cyclo-L-Trp-L-Pro is described. These substances have been evaluated for cytotoxic activity in rat normal fibroblast 3Y1 cells and have also been evaluated in vitro for the inhibition of microtubule assembly. (C) 2000 Elsevier Science Ltd. All rights reserved.
Efficient Synthesis of<i>N</i>-Prenylpyrroloindoline and<i>N</i>-Prenylindole Alkaloids Based on a New Four-Reaction Anionic Domino Process
作者:Pilar López-Alvarado、Esmeralda Caballero、Carmen Avendaño、J. Carlos Menéndez
DOI:10.1021/ol061631m
日期:2006.9
Treatment of 2,5-diketopiperazines or carbamates derived from tryptophan or tryptamine with iodomethyltrimethylsilane followed by lithium hexamethyldisilazane and a prenyl halide produced stereoselectively derivatives of the hexahydropyrrolo[2,3-b]indole system bearing prenyl substituents both at C-3a and at the indoline nitrogen in a one-pot procedure involving a novel four-reaction anionic domino
chemistry, organic chemistry, and biochemistry. We have developed a direct bioinspired indole prenylation reaction using DMAPP or its equivalents as the electrophile in homogeneous aqueous acidic media in the absence of enzyme to provide prenylated indole products. After establishing the bioinspired indole prenylation reaction, this was then used to achieve the synthesis of a series of natural products, namely
衍生自二甲基二烯丙基二磷酸酯(DMAPP)的异戊二烯单元是许多天然产物(包括萜类,类胡萝卜素,类固醇和天然橡胶)中的重要基序。了解DMAPP的化学特性是天然产物化学,有机化学和生物化学中的重要主题。我们已经开发出一种直接的生物启发型吲哚异戊二烯化反应,使用DMAPP或其等同物作为亲电试剂,在均质水性酸性介质中,在不存在酶的情况下提供了异戊二烯化的吲哚产物。建立所述仿生吲哚异戊烯化反应后,然后将其用于实现一系列天然产物,即,的合成Ñ -prenylcyclo-升-tryptophyl-升-脯氨酸,tryprostatins,rhinocladins和terezine D.
Synthesis and evaluation of microtubule assembly inhibition and cytotoxicity of prenylated derivatives of cyclo-l-Trp-l-Pro
作者:Juan F Sanz-Cervera、Emily M Stocking、Takeo Usui、Hiroyuki Osada、Robert M Williams
DOI:10.1016/s0968-0896(00)00171-1
日期:2000.10
The synthesis of three isoprenylated derivatives of cyclo-L-Trp-L-Pro is described. These substances have been evaluated for cytotoxic activity in rat normal fibroblast 3Y1 cells and have also been evaluated in vitro for the inhibition of microtubule assembly. (C) 2000 Elsevier Science Ltd. All rights reserved.