Esters and lactones of phenolic amino carboxylic acids. Prodrugs for iron chelation
作者:Colin G. Pitt、Y. Bao、J. Thompson、M. C. Wani、H. Rosenkrantz、J. Metterville
DOI:10.1021/jm00157a020
日期:1986.7
The new iron chelator N,N'-bis(2-hydroxyphenyl)ethylenediamine-N,N'-diacetic acid (1), its dilactone 2, N,N'-bis(2-hydroxybenzyl)-2-hydroxypropylene-1,3-diamine-N,N'- diacetic acid (3), and its methyl ester lactone 4 and a series of esters of N,N'-bis(2-hydroxybenzyl)ethylenediamine-N,N'-diacetic acid (5) were prepared and their iron chelating efficacy and toxicity determined by using the hypertransfused
新型铁螯合剂N,N'-双(2-羟基苯基)乙二胺-N,N'-二乙酸(1),双内酯2,N,N'-双(2-羟基苄基)-2-羟基丙烯-1, 3-二胺-N,N'-二乙酸(3)及其甲酯内酯4和N,N'-双(2-羟基苄基)乙二胺-N,N'-二乙酸的一系列酯(5)用超输血的铁超负荷小鼠模型制备了它们的铁螯合功效和毒性。将生物学活性与使用高输血大鼠获得的结果进行比较。酯化增强了口服铁螯合活性,但也增加了毒性。5的二异丙酯表现出最高的治疗指数。体外测量表明,在pH 7时酯水解的速率。在5 X 10(-4)M铁离子存在下,5的含量增加10(4)倍,这可能解释了酯和内酯作为前药的效用。筛选了其他十七种螯合剂,但没有腹膜内或口服活性。
Novel Seco Cyclopropa[<i>c</i>]pyrrolo[3,2-<i>e</i>]indole Bisalkylators Bearing a 3,3‘-Arylenebisacryloyl Group as a Linker
We synthesized the novel seco cyclopropa[c]pyrrolo[3,2-e]indole (CPI) bisalkylators and evaluated their antitumor activity. Among these derivatives, 11a (AT-760), in which the two seco 3-methoxycarbonyl-2-trifluoromethyl CPI (MCTFCPI) moieties are connected with a 3,3'-(1,4-phenylene)bisacryloyl group, was found to exhibit more potent cytotoxicity and antitumor activity against HeLaS3 human uterine
Large oligocyclic cavities for strong cation complexation
作者:W. Kiggen、F. Vögtle、S. Franken、H. Puff
DOI:10.1016/s0040-4020(01)87606-7
日期:1986.1
The syntheses of oligocyclic large cavities containing two or three catechol subunits are described. The X-ray analysis of a heptacyclic molecule composed of three triply clamped dimethyl catechol ether units demonstrates the size and shape of the cavity formed by this skeleton. Properties of the Fe3+- and Ga3+-complexes are elucidated by 1H-NMR, IR, UV/Vis spectra, and by competition experiments with
One-Pot Formation of Large Macrocycles with Modifiable Peripheries and Internal Cavities
作者:Joseph S. Ferguson、Kazuhiro Yamato、Rui Liu、Lan He、Xiao Cheng Zeng、Bing Gong
DOI:10.1002/anie.200900584
日期:2009.4.14
come: Aromatic oligohydrazide macrocycles with planar backbones enforced by three‐center hydrogen bonds are formed in high yield from monomeric diacid chlorides and dihydrazides. Macrocycles consisting of six meta‐linked pyridine and benzene residues have an internalcavity of about 10 Å diameter, while those with alternating meta‐ and para‐linked benzene residues are larger and contain multiple convergent
Acrylamide derivatives and process for production thereof
申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US05786486A1
公开(公告)日:1998-07-28
Acrylamide derivatives represented by General Formula (1) below: ##STR1## (One specific example of General Formula (1) is methyl (S,S)-3,3'-\x9b3,3'-(1,4-phenylenediacryloyl)!-bis\x9b1-chloromethyl-5-hydroxy-7 -triflouromethyl-1, 2,3,6-tetrahydropyrrolo\x9b3,2-e!indole-8-carboxylate.) The acrylamide derivatives represented by General Formula (1) is highly selective to cancer cells, less toxic, and highly active also against solid tumor.