Anthracenone ABA analogue as a potential photoaffinity reagent for ABA-binding proteins
摘要:
An anthracenone analogue of abscisic acid (ABA) was synthesized as a potential photoaffinity reagent and tested for biological activity. Reaction between 10,10'-dimethoxy-9-anthrone with two equivalents of the lithiated dianion of cis-3-methylpent-2-en-4-yn-1-ol afforded an acetylenic alcohol key intermediate. Subsequent reduction of the triple bond, functional group manipulation of the side chain alcohol and deprotection of the dimethoxy protected anthrone provided anthracenone ABA analogue 7 as a potential photoaffinity reagent for ABA-binding proteins. The effect of natural ABA and the potential photoaffinity anthracenone ABA 7 on corn cell growth was determined at various concentrations. The results show that anthracenone ABA 7 is perceived as ABA-like, although producing less inhibition than ABA itself. For example, 7 at 33 mu M produces approximately the same inhibition as ABA at 10 mu M. Crown Copyright (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
Anodic oxidation as a synthetic expedient to naphthoquinone and anthraquinone ketals
作者:Zhen Yang、Yu Xin Cui、Henry N.C. Wong、Ru Ji Wang、Thomas C.W. Mak、Hson Mou Chang、Chi Ming Lee
DOI:10.1016/0040-4020(92)85005-y
日期:1992.1
Some naphthoquinone and anthraquinone ketals have been prepared by anodic oxidation. Regioselective hydrolysis of the above diketals into monoketals is also described. Diels-Alder reaction of (E)-1-methoxybuta-1,3-diene with the monoketal of 1,4-dihydro-4,4-dimethoxy-5-benzyloxynaphthalene proceeded in a regioselective manner.