Molecules, 2012 The in vitro antioxidant activities of eight 3-carboxycoumarin derivatives were assayed by the quantitative 1,1-diphenyl-2-picrylhydrazil (DPPH•) radical scavenging activity method.
Maria Teresa Sumaya-Martínez +6 more
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Methyl 2-oxo-2H-chromene-3-carboxylate [PDF]
, 2012 The title compound, C11H8O4, features an almost planar molecule (r.m.s. deviation = 0.033 Å for all non-H atoms). In the crystal, the molecules are linked via C-H...O hydrogen bonds, forming two-dimensional networks lying parallel to (1-21)
Arshad, Muhammad +3 more
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Multifunctional Spirocyclic Systems
International Journal of Photoenergy, 2009 New spiropyrans with different substituents in the benzopyran fragment have been synthesized and investigated. It was shown that introduction of aldehyde group in the structure of spiropyrans gives a possibility to obtain new functionalized compounds ...
Boris Lukyanov +7 more
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Characterization of the xiamenmycin biosynthesis gene cluster in Streptomyces xiamenensis 318.
PLoS ONE, 2014 Xiamenmycin (1) is a prenylated benzopyran derivative with anti-fibrotic activity. To investigate the genetic basis of xiamenmycin biosynthesis, we performed genome mining in the xiamenmycin-producing Streptomyces xiamenensis wild-type strain 318 to ...
Yong Yang +5 more
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A KATP channel opener inhibited myocardial reperfusion action potential shortening and arrhythmias [PDF]
, 2001 Low concentrations of certain K<sub>ATP</sub> channel openers have been reported to exert a moderate inhibitory effect on arrhythmias during post-ischaemic early myocardial reperfusion, but the accompanying effects on the time course of ...
MacKenzie, I. +2 more
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Chirale Lactole, IV. Selektivitäten bei Acetalisierungsreaktionen enantiomerenreiner Lactole am Beispiel von Octahydro-8,9,9-trimethyl-5,8-methano-2H-1-benzopyran-2-ol [PDF]
, 1985 Eine Synthese für das Lactol 1 wird beschrieben und seine Eignung als Reagens zur Racemattrennung an einigen Beispielen gezeigt. Aufgrund einer Röntgenstruktur und konformationsanalytischer Überlegungen wird eine allgemeine Regel erarbeitet, nach welcher
Bourne +16 more
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Computer programs for calculating pKa: a comparative study for 3-(3-(2-nitrophenyl)prop-2-enoyl)-2H-1-benzopyran-2-one [PDF]
Journal of the Serbian Chemical Society, 2010 Coumarin-based compounds containing a chalcone moiety exhibit antimicrobial activity. These substances are potential drugs and it is important to determine their pKa values. However, they are almost insoluble in water.
SELMA ŠPIRTOVIĆ-HALILOVIĆ +1 more
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Investigating nano-structuring within imidazolium ionic liquids: A thermodynamic study using photochromic molecular probes [PDF]
, 2009 Following previous studies involving the thermal relaxation of spirocyclic compounds we extended our studies to investigate the formation of nano-structured domains in ionic liquids (ILs).
Byrne, Robert +3 more
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Journal of Enzyme Inhibition and Medicinal Chemistry, 2017 While progress has been made in treating cancer, cytotoxic chemotherapeutic agents are still the most widely used drugs and are associated with severe side-effects.
Jalisa H. Ferguson +6 more
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Isolasi Dan Identifikasi Senyawa Kumarin Dari Tanaman Artemisia Annua (L). [PDF]
, 2008 The invention of new entity from plant was the basic step for chemistry and another sciences development, such as: pharmacy, biology, and medical. Besides that, it is needed to fulfill people needs on food, medicine, cosmetics, etc.
Isnawati, A. (Ani) +2 more
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