72005-84-6Relevant academic research and scientific papers
A highly selective fluorogenic substrate for imaging glutathione S-transferase P1: Development and cellular applicability in epigenetic studies
Mori, Masaya,Fujikawa, Yuuta,Kikkawa, Manami,Shino, Moeho,Sawane, Mei,Sato, Shiho,Inoue, Hideshi
supporting information, p. 8122 - 8125 (2019/07/15)
Pi-class glutathione S-transferase (GSTP1) is a molecular marker enzyme whose expression level is altered in various malignant tumour tissues. Herein, we report the first highly selective fluorogenic GSTP1 substrate, Ps-TG, and its membrane-permeable deri
BETA-SUBSTITUTED BETA-AMINO ACIDS AND ANALOGS AS CHEMOTHERAPEUTIC AGENTS AND USES THEREOF
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Paragraph 0559; 0602, (2017/02/28)
β-Substituted β-amino acids, β-substituted β-amino acid derivatives, and β-substituted β-amino acid analogs and (bio)isosteres and their use as chemotherapeutic agents are disclosed. The β-substituted β-amino acid derivatives and β-substituted β-amino acid analogs and (bio)isosteres are selective LAT1/4F2hc substrates and exhibit rapid uptake and retention in tumors expressing the LAT1/4F2hc transporter. Methods of synthesizing the β-substituted β-amino acid derivatives and β-substituted β-amino acid analogs and methods of using the compounds for treating cancer are also disclosed. The β-substituted β-amino acid derivatives and β-substituted β-amino acid analogs exhibit selective uptake in tumor cells expressing the LAT1/4F2hc transporter and accumulate in cancerous cells when administered to a subject in vivo. The β-substituted β-amino acid derivatives and β-substituted β-amino acid analogs and (bio)isosteres exhibit cytotoxicity toward several tumor types.
BETA-SUBSTITUTED BETA-AMINO ACIDS AND ANALOGS AS CHEMOTHERAPEUTIC AGENTS
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Paragraph 0527; 0528; 0582, (2015/09/22)
β-Substituted β-amino acids, β-substituted β-amino acid derivatives, and β-substituted β-amino acid analogs and (bio)isosteres and their use as chemotherapeutic agents are disclosed. The β-substituted β-amino acid derivatives and β-substituted β-amino acid analogs and (bio)isosteres are selective LAT1/4F2hc substrates and exhibit rapid uptake and retention in tumors expressing the LAT1/4F2hc transporter. Methods of synthesizing the β-substituted β-amino acid derivatives and β-substituted β-amino acid analogs and methods of using the compounds for treating cancer are also disclosed. The β-substituted β-amino acid derivatives and β-substituted β-amino acid analogs exhibit selective uptake in tumor cells expressing the LAT1/4F2hc transporter and accumulate in cancerous cells when administered to a subject in vivo. The β-substituted β-amino acid derivatives and β-substituted β-amino acid analogs and (bio)isosteres exhibit cytotoxicity toward several tumor types.
SUBSTITUTED HETEROCYCLIC DERIVATIVES
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Page/Page column 54, (2014/06/11)
The present invention relates to compounds of general formula (I-1) or (I-2) wherein R1 is hydrogen, lower alkyl, lower alkoxy, halogen, O(CH2)2-lower akoxy, O(CH2)2N(CH3)2, or O(CH2)-morpholinyl; R1' is hydrogen, lower alkyl, lower alkoxy, halogen, O(CH2)2-lower akoxy, O(CH2)2N(CH3)2, or O(CH2)-morpholinyl; with the proviso that both R1 and R1' may be simultaneously hydrogen, but only one of R1 and R1' is lower alkyl, lower alkoxy, halogen, O(CH2)2-lower akoxy, O(CH2)2N(CH3)2, or O(CH2)-morpholinyl; Het is a 5-or 6 membered heteroaryl group, wherein the heteroatom is selected from N, O or S; X is -CRR'-, -CRR'-NR'-, -C(O)-, -CH2-S-, -CH2-S(O)2-, CH2-O- or -CH2-CRR'-; R/R' are independently from each other hydrogen, lower alkyl, hydroxy or phenyl, or R and R' may form together with the carbon atom to which they are attached a cyclopropyl ring; R2 is lower alkyl, -C(O)O-lower alkyl, C3-6-cycloalkyl optionally substituted by lower alkyl or =O, bridged cyclohexyl or C3-6-cycloalkenyl, or is a 5-membered heteroaryl group, wherein the heteroatom is selected from N, O or S and which is optionally substituted by one or more lower alkyl, or is pyridinyl, optionally substituted by halogen or lower alkoxy; or is phenyl, optionally substituted by one or more R2', selected from halogen, cyano, S(O)2-lower alkyl, lower alkyl, lower alkyl substituted by halogen, lower alkoxy, lower alkoxy substituted by halogen or amino, or is benzo[1,3]dioxolyl, naphthyl, indolyl, benzo-isoxazolyl, 2,3-dihydro-1H-indenyl, optionally substituted by lower alkoxy or by an oxo group, or is 3,4-dihydro-2H- [1,4]oxazinyl, optionally substituted by an oxo group, or is a five or six membered heterocycloalkyl group; or to a pharmaceutically acceptable acid addition salt, to a racemic mixture or to its corresponding enantiomer and/or optical isomers thereof. The compounds may be used for the treatment or prophylaxis of schizophrenia, obsessive-compulsive personality disorder, major depression, bipolar disorders, anxiety disorders, normal aging, epilepsy, retinal degeneration, traumatic brain injury, spinal cord injury, post-traumatic stress disorder, panic disorder, Parkinson's disease, dementia, Alzheimer's disease, mild cognitive impairment, chemotherapy-induced cognitive dysfunction, Down syndrome, autism spectrum disorders, hearing loss, tinnitus, spinocerebellar ataxia, amyotrophic lateral sclerosis, multiple sclerosis, Huntington's disease, stroke, radiation therapy, chronic stress, abuse of neuro-active drugs, such as alcohol, opiates, methamphetamine, phencyclidine and cocaine.
KINASE INHIBITORS
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Paragraph 0167-0168, (2013/12/03)
The present invention relates to compounds of Formula I or a pharmaceutically acceptable salt thereof, wherein variables R, Ar, X, and Ar1 and n are as defined herein. The compounds are capable of modulating tyrosine kinase signal transduction in order to regulate, modulate and/or inhibit abnormal cell proliferation.
Design and synthesis of highly sensitive fluorogenic substrates for glutathione S-transferase and application for activity imaging in living cells
Fujikawa, Yuuta,Urano, Yasuteru,Komatsu, Toru,Hanaoka, Kenjiro,Kojima, Hirotatsu,Terai, Takuya,Inoue, Hideshi,Nagano, Tetsuo
experimental part, p. 14533 - 14543 (2009/02/08)
Here we report the development of fluorogenic substrates for glutathione S-transferase (GST), a multigene-family enzyme mainly involved in detoxification of endogenous and exogenous compounds, including drug metabolism. GST is often overexpressed in a variety of malignancies and is involved in the development of resistance to various anticancer drugs. Despite the medical significance of this enzyme, no practical fluorogenic substrates for fluorescence imaging of GST activity or for high-throughput screening of GST inhibitors are yet available. So, we set out to develop new fluorogenic substrates for GST. In preliminary studies, we found that 3,4-dinitrobenzanilide (NNBA) is a specific substrate for GST and established the mechanisms of its glutathionylation and denitration. Using these results as a basis for off/on control of fluorescence, we designed and synthesized new fluorogenic substrates, DNAFs, and a cell membrane-permeable variant, DNAT-Me. These fluorogenic substrates provide a dramatic fluorescence increase upon GST-catalyzed glutathionylation and have excellent kinetic parameters for the present purpose. We were able to detect nuclear localization of GSH/GST activity in HuCCT1 cell lines with the use of DNAT-Me. These results indicate that the newly developed fluorogenic substrates should be useful not only for high-throughput GST-inhibitor screening but also for studies on the mechanisms of drug resistance in cancer cells.
Orally active CCR5 antagonists as anti-HIV-1 agents 2: Synthesis and biological activities of anilide derivatives containing a pyridine N-oxide moiety
Seto, Masaki,Aramaki, Yoshio,Imoto, Hiroshi,Aikawa, Katsuji,Oda, Tsuneo,Kanzaki, Naoyuki,Iizawa, Yuji,Baba, Masanori,Shiraishi, Mitsuru
, p. 818 - 829 (2007/10/03)
In order to develop orally active CCR5 antagonists, we investigated 1-benzoxepine derivatives containing new polar substituents, such as phosphonate, phosphine oxide or pyridine N-oxide moieties, as replacements for the previoiusly reported quaternary ammonium moiety. Among these compounds, the 2-(α-hydroxybenzyl)pyridine N-oxide 5e exhibited moderate CCR5 antagonistic activity and had an acceptable pharmacokinetic profile in rats. Subsequent chemical modification was performed and compound (S)-5f possessing the (S)-configuration hydroxy group was found to be more active than the (R)-isomer. Replacement of the 1-benzoxepine ring with a 4-methylphenyl group by a 1-benzazepine ring with a 4-[2-(butoxy)ethoxy]phenyl group enhanced the activity in the binding assay. In addition, introduction of a 3-trifluoromethyl group on the phenyl group of the anilide moiety led to greatly increased activity in the HIV-1 envelope-mediated membrane fusion assay. In particular, compound (S)-5s showed the most potent CCR5 antagonistic activity (IC 50=7.2 nM) and inhibitory effect (IC50=5.4 nM) in the fusion assay, together with good pharmacokinetic properties in rats.
Inhibitors of inosine monophosphate dehydrogenase: SARs about the N-[3-methoxy-4-(5-oxazolyl)phenyl moiety
Iwanowicz, Edwin J.,Watterson, Scott H.,Guo, Junqing,Pitts, William J.,Murali Dhar,Shen, Zhongqi,Chen, Ping,Gu, Henry H.,Fleener, Catherine A.,Rouleau, Katherine A.,Cheney, Daniel L.,Townsend, Robert M.,Hollenbaugh, Diane L.
, p. 2059 - 2063 (2007/10/03)
The first reported structure-activity relationships (SARs) about the N-[3-methoxy-4-(5-oxazolyl)phenyl moiety for a series of recently disclosed inosine monophosphate dehydrogenase (IMPDH) inhibitors are described. The syntheses and in vitro inhibitory values for IMPDH II, and T-cell proliferation (for select analogues) are given.
Comparative Reactivity of Substituted 4-Nitrobenzylidene Dichlorides with Alkali
Goh, Swee Hock,Kam, Toh Seok
, p. 423 - 426 (2007/10/02)
A comparative study of the reactions of substituted 4-nitrobenzylidene dichlorides ArCHCl2 (Ar = 3-Cl-4-NO2C6H3, 2-Cl-4-NO2C6H3, 4-NO2C6H4, 3,5-Me2-4-NO2C6H2, and 2-Me-4-NO2C6H3) with aqueous alcoholic alkali shows that chlorine substitution enhances the
