Selective .beta.3-adrenergic agonists of brown adipose tissue and thermogenesis. 2. [4-[2-[(2-Hydroxy-3-phenoxypropyl)amino]ethoxy]phenoxy]acetamides
摘要:
The ester methyl [4-[2-[(2-hydroxy-3-phenoxypropyl)amino]ethoxy]phenoxy]acetate (1) (R1 = OMe) had previously been identified as the most interesting member of a series of selective beta-3-adrenergic agonists of brown adipose tissue and thermogenesis in the rat. In vivo it acts mainly via the related acid 1 (R1 = OH). Amides have been examined to determine whether they have advantages over the ester. In particular, in the rat and dog the half-lives of amides of appropriate potency were no longer than those of the ester. The amide (S)-4-[2-[(2-hydroxy-3-phenoxypropyl)amino]ethoxy]-N-(2-methoxyethyl)phenoxyacetamide [S-27, ICI D7114] was selected as having properties consistent with a sustained-release formulation should that prove necessary. Unlike the ester it is resistant to hydrolysis in the gut lumen. Further testing of ICI D7114 has shown that in the rat, cat, and dog it stimulates the beta-3-adrenergic receptor in brown adipose tissue at doses lower than those at which it affects beta-1- and beta-2-adrenergic receptors in other tissues. Slimming effects were observed in the dog. ICI D7114 may be a selective thermogenic agent in man and may be useful in the treatment of obesity and diabetes.
ROS-activated compounds as selective anti-cancer therapeutics
申请人:University of Cincinnati
公开号:US09394233B2
公开(公告)日:2016-07-19
Provided are compounds according to the following Formula I:
The Formula I compounds are activated in the presence of reactive oxygen species (ROS) and are therefore selective anti-cancer therapeutics for cancers associated with elevated ROS. Also provided are methods and pharmaceutical compositions for treating cancers associated with increased ROS.
transport at a molecular junction is realized in pillar[5]arene-basedself-assembled monolayers through host–guest interactions with cationic guest molecules. The improved charge transport is positively correlated with the strong binding affinity between pillar[5]arene and cationic guest molecules, which results in a delocalized structure in the supramolecular complex and a reduced energy offset.
Novel ROS-activated agents utilize a tethered amine to selectively target acute myeloid leukemia
作者:Tiffany R. Bell-Horwath、Anish K. Vadukoot、Fathima Shazna Thowfeik、Guorui Li、Mark Wunderlich、James C. Mulloy、Edward J. Merino
DOI:10.1016/j.bmcl.2013.03.048
日期:2013.5
This study explores the possible use of reactive oxygen-activated DNA modifying agents against acute myeloid leukemia (AML). A key amine on the lead agent was investigated via cytotoxicity assays and was found necessary for potency. The two best compounds were screened via the NCI-60 cell panel. These two compounds had potency between 200 and 800 nM against many of the leukemia cancer cell types. Subsequent experiments explored activity against a transformed AML model that mimics the molecular signatures identified in primary AML patient samples. A lead compound had an IC50 of 760 nM against this AML cell line as well as a therapeutic index of 7.7 +/- 3 between the transformed AML model cell line and non-cancerous human CD34+ blood stem/progenitor cells (UCB). The selectivity was much greater than the mainstays of AML treatment: doxorubicin and cytarabine. This manuscript demonstrates that this novel type of agent may be useful against AML. (C) 2013 Elsevier Ltd. All rights reserved.
Antiviral activity of some .beta.-diketones. 3. Aryl bis(.beta.-diketones). Antiherpetic activity
作者:Guy D. Diana、Philip M. Carabateas、U. Joseph Salvador、Gordon L. Williams、Ethel S. Zalay、Francis Pancic、B. A. Steinberg、Joseph C. Collins
DOI:10.1021/jm00205a019
日期:1978.7
A series of bis(beta-diketones) was synthesized and tested in vitro for antiviral actitity against herpes simplex type 2. Two parameters which were studied in an effort to optimize activity were the nature of the aryl group and the length of the alkyl bridge. One of the more active compounds, 4,4'-[(1,4-phenylenedioxy)bis(6,1-hexanediyl)]-bis[3,5-heptanedione] (6), was evaluated more extensively and found to inhibit the cytopathic effect in tissue culture of herpes simplex virus type 1 as well as type 2. Compound 6 was evaluated in vivo topically against herpes simplex type 1 in experimentally induced skin infections in guinea pigs. A topical treatment with 2% of 6 in a vanishing cream base, administered 24 h postinfection applied five times daily for 4 days, significantly reduced the number and size of herpetic vesicles.
DIANA G. D.; CARABATEAS P. M.; SALVADOR U. J.; WILLIAMS G. L.; ZALAY E. S+, J. MED. CHEM., 1978, 21, NO 7, 689-692
作者:DIANA G. D.、 CARABATEAS P. M.、 SALVADOR U. J.、 WILLIAMS G. L.、 ZALAY E. S+