1-(Fluoroalkylidene)-1,1-bisphosphonic acids are potent and selective inhibitors of the enzymatic activity of Toxoplasma gondii farnesyl pyrophosphate synthase
METAL COMPLEX COMPOUND, CANCER THERAPEUTIC COMPOSITION COMPRISING THE METAL COMPLEX COMPOUND AS ACTIVE INGREDIENT, AND INTERMEDIATE FOR PRODUCTION OF THE METAL COMPLEX COMPOUND
申请人:TMRC Co., Ltd.
公开号:EP2177525A1
公开(公告)日:2010-04-21
A metal complex compound which exhibits a high degree of adsorption to bone or inhibition of cell growth, and is highly effective for therapy of a cancer metastasized to bone and therapy of the primary carcinoma thereof; a therapeutic agent composition for a cancer containing as an active ingredient the metal complex compound or a physiologically acceptable salt thereof; and an intermediate for the metal complex compound are provided. More concretely, a metal complex compound represented by the following General Formula (1):
(wherein R1 independently represents C1-C10 alkyl which may be branched or have a substituent; or a C3-C30 cyclic group which may have a substituent; and X represents CHR2, an oxygen atom or NR5);
a therapeutic agent composition for a cancer containing it as an active ingredient; and an intermediate for the metal complex compound are provided.
Michael addition of Grignard reagents to tetraethyl ethenylidenebisphosphonate
作者:Marco L Lolli、Loretta Lazzarato、Antonella Di Stilo、Roberta Fruttero、Alberto Gasco
DOI:10.1016/s0022-328x(02)01179-8
日期:2002.5
Tetraethyl ethenylidenebisphosphonate can undergo facile Michael typeaddition reaction with simple Grignardreagents to give alkyl, arylalkyl, aryl C-substituted methylene bisphosphonates. This addition easily occurs even if funtionalised Grignardreagents are used.
A FACILE APPROACH FOR THE SYNTHESIS OF α -HALOGENATED ALKYLIDENEDIPHOSPHONATES BY REACTION OF ALKYLLITHIUM WITH CHLOROPHOSPHATE AND HALOGEN REAGENT
作者:Chunbo Lai、Chanjuan Xi、Yuping Feng
DOI:10.1080/10426500490262621
日期:2004.3.1
Alkyllithium reacts with chlorophosphate to generate the α -lithio- alkylidenediphosphonate, which further reacts with halogen reagents to afford corresponding α -halogenated alkylidenediphosphonates.
Optimum conditions for the solid–liquid phase alkylation of tetraethyl methylenebisphosphonate are dependent on the nature of the alkyl halide. The benzylation with benzyl bromide takes place efficiently in boiling acetonitrile in the presence of potassium carbonate and a phase transfer catalyst. The ethylation with ethyl iodide was best accomplished under solventless microwave conditions in the presence
Bisphosphonates derived from fatty acids are potent inhibitors of Trypanosoma cruzi farnesyl pyrophosphate synthase
作者:Sergio H. Szajnman、Andrea Montalvetti、Youhong Wang、Roberto Docampo、Juan B. Rodriguez
DOI:10.1016/s0960-894x(03)00663-2
日期:2003.10
Studies on the mode of action of a series of bisphosphonates derived from fatty acids, which had previously proved to be potent inhibitors against Trypanosoma cruzi proliferation in in vitro assays, have been performed. Some of these drugs proved to be potent inhibitors against the intracellular form of the parasite, exhibiting IC50 values at the low micromolar level. As bisphosphonates are FDA clinically approved for treatment of bone resorption disorders, their potential innocuousness makes them good candidates to control tropical diseases. (C) 2003 Elsevier Ltd. All rights reserved.