نتایج جستجو برای: 8 dioxo octahydroxanthenes

تعداد نتایج: 656093  

Journal: :Bioscience, biotechnology, and biochemistry 2004
Shin-ichi Kayano Hiroe Kikuzaki Takao Ikami Tomoo Suzuki Takahiko Mitani Nobuji Nakatani

Isolation and structural elucidation of prune constituents were performed and total 10 compounds were determined by NMR and MS analyses. A novel compound was identified to be 2-(5-hydroxymethyl-2',5'-dioxo-2',3',4',5'-tetrahydro-1'H-1,3'-bipyrrole)carbaldehyde, and 7 phenolic compounds were isolated from prunes for the first time. In addition, antioxidant activity of them was evaluated on the b...

2012
Hua Zhang Hubo Wang Xueyan Zhu Zhedong Yuan Huijuan Jiang

In the crystal structure of the title compound, C(28)H(37)N(4)O(2)S(+)·Cl(-) [systematic name: 4-(1,2-benzothia-zol-3-yl)-1-({2-[(3,5-dioxo-4-aza-tricyclo-[5.2.1.0(2,6)]decan-4-yl)meth-yl]cyclo-hex-yl}meth-yl)piperazin-1-ium chloride], the anions and cations are linked by N-H⋯Cl hydrogen bonds. The crystal structure is further stabilized by C-H⋯π and C-H⋯O inter-actions.

2001
Kamal A. Kandeel Ahmed S. A. Youssef

E,Z-5-Aroylmethylene-3-benzyl-4-oxo-2-thioxo-1,3-thiazolidines (3a-c) react with 4-methoxy and 4-chlorophenylnitrile oxides (4a and b) in pyridine solution to afford one or more of the following compounds: Z-3, Z-2,4-dioxo analogues 5 and 3,6-diaryl1,4,2,5-dioxadiazines (6a-b). The interconversion route is discussed and the structures of all of the synthesised compounds are proven by microanaly...

2010

NUROMAX (doxacurium chloride) is a long-acting, nondepolarizing skeletal muscle relaxant for intravenous administration. Doxacurium chloride is [1α,2β(1'S*,2'R*)]-2,2' -[(1,4-dioxo-1,4butanediyl)bis(oxy-3,1-propanediyl)]bis[1,2,3,4-tetrahydro-6,7,8-trimethoxy-2methyl-1-[(3,4,5trimethoxyphenyl)methyl]isoquinolinium] dichloride (meso form). The molecular formula is C56H78CI2N2O16 and the molecula...

Journal: :Acta Crystallographica Section E Structure Reports Online 2004

2016
Thomas M. Moore Murthy R. Akula George W. Kabalka

A novel thiol-reactive bifunctional agent, an analogue of fluorobenzaldehyde-O-[6-(2,5-dioxo-2,5dihydro-pyrrol-1-yl)-hexyl]oxime, (FBAM) has been synthesized. The new prosthetic group, [18F]FBAMPy, replaces the 4-fluorophenyl moiety with a 2-fluoropyridinyl moiety leading to increased polarity (FBAM analytical HPLC Rf = 6.4 min; FBAMPy Rf = 4.8 min) while retaining the sulfurreactive pendant. B...

Journal: :Chemical communications 2012
David J Sullivan Rodolphe Clérac Michael Jennings Alan J Lough Kathryn E Preuss

The first metal coordination complex of a radical ligand based on the 1,2,3-dithiazolyl heterocycle is reported. 6,7-Dimethyl-1,4-dioxo-naphtho[2,3-d][1,2,3]dithiazolyl acts as a bridging ligand in the volatile trinuclear Mn(hfac)(2)-Rad-Mn(hfac)(2)-Rad-Mn(hfac)(2) complex (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonato-). The Mn(II) and radical ligand spins are coupled anti-ferromagnetically (AF...

A. Fallah-Tafti A. Foroumadi A. Nasrolahi Shirazi A. Rafinejad D. Mandal K. Parang R. Tiwari T. Akbarzadeh

In this work, different ethyl 2,4-dioxo-4-arylbutanoate derivatives were prepared and evaluated for their Src Kinase inhibitory activity. For this purpose, the appropriate substituted acetophenone derivatives reacted with diethyl oxalate in the presence of sodium ethoxide in dried ethanol to give the corresponding products. All compounds showed moderate activities comparing with staurosporine a...

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

Journal: :journal of advanced medical sciences and applied technologies 0
ali mohammad amani a) department of medical nanotechnology, school of advanced medical sciences and technologies, shiraz university of medical sciences, shiraz, iran b) department of chemistry shiraz university of technology shiraz iran c)pharmaceutical sciences research center, shiraz university of medical sciences, shiraz, iran saeed gholamzadeh mohammad zarenezhad abdorrasoul malekpour ehsan javidnezhad

acridine derivatives, especially 1,8-dioxo-9-aryl-decahydroacridine represent significant scaffolds in medicinal chemistry. given the biological properties of such products which are used in drug development, they need to have appropriate carrier. proteins are generally used as helpful tools in drug delivery. consequently, molecular docking between these compounds and bovine serum albumin (bsa)...

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