Synthesis and In Vitro Antitumor Activity of Thiophene Analogues of 5-Chloro-5,8-dideazafolic Acid and 2-Methyl-2-desamino-5-chloro-5,8-dideazafolic Acid
作者:R Forsch
DOI:10.1016/s0968-0896(02)00018-4
日期:2002.6
followed by NBS bromination, condensation with di-tert-butyl N-(5-amino-2-thenoyl)-L-glutamate (28), and stepwise cleavage of the protecting groups with ammonia and TFA yielded. Treatment of 9 with acetic anhydride afforded 2,6-dimethyl-5-chlorobenz[1,3-d]oxazin-4-one (31), which on reaction with ammonia, NaOH was converted to 2,6-dimethyl-5-chloro-3,4-dihydroquinazolin-4-one (33). Bromination of, followed
regiospecific approach to 2- and 2,3-disubstituted indole derivatives in high yields via a one-pot aromatization driven dehydration pathway. This method allows a convenient preparation of diallyl indoles that are used as ring-closing metathesis (RCM) precursors for the orthogonal synthesis of pyrido[1,2-a]indoles and carbazoles. The synthetic utility of this method is illustrated by the synthesis of a microtubulin
以前未开发的将格利雅(Grignard)添加到羟吲哚中的方法通过一锅芳构化驱动的脱水途径,以高收率提供了一种区域特异性的方法,用于2-和2,3-二取代的吲哚衍生物。这种方法可以方便地制备用作烯丙基[1,2- a ]吲哚和咔唑的正交合成的闭环复分解(RCM)前体的二烯丙基吲哚。该方法的合成效用通过微管蛋白抑制剂和天然存在的咔唑生物碱的合成来说明。
Synthesis of substituted tryptanthrin via aryl halides and amines as antitumor and anti-MRSA agents
tryptanthrin (indolo[2,1-b]quinazoline-6,12-dione), and its analogues are found to exhibit potent antitumor and anti-MRSA activities. An efficient and convenient method has been developed for the synthesis of tryptanthrin D-ring derivatives through the reaction of substituted tryptanthrins and secondary amines in moderate to good yields. Some of the new compounds exhibited antitumor activities against the human
[EN] HYDROXYQUINOLIN-2(1H)-ONES AND DERIVATIVES THEREOF<br/>[FR] HYDROXYQUINOLIN-2(1H)-ONES ET LEURS DÉRIVÉS
申请人:PFIZER
公开号:WO2010058314A1
公开(公告)日:2010-05-27
This invention relates to known and novel hydroxyquinolin-2(1H)-ones and derivatives thereof which are useful for the treatment of cognitive-related disorders and neuropathic pain disorders in a mammal, e.g., a human. The invention also relates to pharmaceutical compositions containing such compounds.
Novel 1,3-dihydro-2H-indol-2-one derivatives, process for preparing them and pharmaceutical compositions containing them
申请人:Roux Richard
公开号:US20050176770A1
公开(公告)日:2005-08-11
The invention relates to compounds of formula:
and to solvates and/or hydrates thereof, with affinity for and selectivity towards the V
1b
receptors or both the V
1b
and V
1a
receptors of arginine-vasopressin.
The invention also relates to a process for preparing them, to the intermediate compounds of formula (II) which are useful for preparing them, to pharmaceutical compositions containing them and to their use for preparing medicinal products.