Showing 1-24 of 24 results for "240125"
Ho Sik Rho et al.
Bioorganic & medicinal chemistry letters, 19(5), 1532-1533 (2009-02-03)
Six diphenolic compounds containing adamantane moiety were synthesized and evaluated as potent inhibitors on tyrosinase activity and melanin formation in Melan-A cells. The inhibitory activity of 4-adamantyl resorcinol 1 was similar to that of 4-n-butyl resorcinol in both assays. However...
Alfonso Pérez-Garrido et al.
Bioorganic & medicinal chemistry, 17(2), 896-904 (2008-12-06)
This paper reports a QSAR study for predicting the complexation of a large and heterogeneous variety of substances (233 organic compounds) with beta-cyclodextrins (beta-CDs). Several different theoretical molecular descriptors, calculated solely from the molecular structure of the compounds under investigation...
Charles Bodet et al.
European journal of medicinal chemistry, 43(8), 1612-1620 (2007-12-21)
The aim of this study was to investigate the effect of 3-(4'-geranyloxy-3'-methoxyphenyl)-2-trans propenoic acid, active principle isolated from Acronychia baueri Schott, and its ester derivatives on biofilm formation by two important oral pathogens, Porphyromonas gingivalis and Streptococcus mutans. The parent...
Cynthia D Selassie et al.
Journal of medicinal chemistry, 48(23), 7234-7242 (2005-11-11)
In this comprehensive study on the caspase-mediated apoptosis-inducing effect of 51 substituted phenols in a murine leukemia cell line (L1210), we determined the concentrations needed to induce caspase activity by 50% (I50) and utilized these data to develop the following...
Maya Mori-Hongo et al.
Journal of natural products, 72(2), 194-203 (2009-01-10)
In the course of our search for new melanin synthesis inhibitors from plants, 40 new flavonoids and 11 known flavonoids were isolated from the roots of Lespedeza floribunda Bunge. The structures of the new compounds were determined by MS and...
Woo Duck Seo et al.
European journal of medicinal chemistry, 45(5), 2010-2017 (2010-02-13)
The 4'-(p-toluenesulfonylamino)-4-hydroxychalcone (TSAHC), which bears inhibitory chemotypes for both alpha-glucosidase and tyrosinase, was evaluated for tyrosinase activity and depigmenting ability relative to compounds designed to only target tyrosianse activity. TSAHC emerged to be a competitive reversible inhibitor of mushroom tyrosinase....
Jehun Choi et al.
Bioorganic & medicinal chemistry letters, 20(16), 4882-4884 (2010-07-14)
In searching for new agents with a depigmenting effect, we synthesized a derivative of resveratrol, 5-(6-hydroxy-2-naphthyl)-1,2,3-benzenetriol (5HNB) with a potent tyrosinase inhibitory activity. 5HNB inhibited mushroom tyrosinase with an IC(50) value of 2.95 microM, which is more potent than the...
Francesco Epifano et al.
Bioorganic & medicinal chemistry letters, 17(20), 5709-5714 (2007-09-05)
Different esters of 3-(4'-geranyloxy-3'-methoxyphenyl)-2-trans propenoic acid (1), an anti-inflammatory principle of Acronychia baueri Schott (Rutaceae), were synthesized. Their topical anti-inflammatory activity was evaluated using the Croton oil ear test in mice as a model of acute inflammation. The activity of...
Denis Fourches et al.
Chemical research in toxicology, 23(1), 171-183 (2009-12-18)
Drug-induced liver injury is one of the main causes of drug attrition. The ability to predict the liver effects of drug candidates from their chemical structures is critical to help guide experimental drug discovery projects toward safer medicines. In this...
Phedias Diamandis et al.
Nature chemical biology, 3(5), 268-273 (2007-04-10)
The identification of self-renewing and multipotent neural stem cells (NSCs) in the mammalian brain holds promise for the treatment of neurological diseases and has yielded new insight into brain cancer. However, the complete repertoire of signaling pathways that governs the...
Sevim Beyza Oztürk Sarikaya et al.
Bioorganic & medicinal chemistry letters, 21(14), 4259-4262 (2011-06-15)
Carbonic anhydrase inhibitors (CAIs) are a class of pharmaceuticals used as antiglaucoma agents, diuretics, antiepileptics, in the management of mountain sickness, gastric and duodenal ulcers, neurological disorders or osteoporosis. We report here the inhibitory capacities of some phenolic compounds against...
Alessio Innocenti et al.
Bioorganic & medicinal chemistry, 16(15), 7424-7428 (2008-06-27)
Inhibition of 12 mammalian isoforms of the metalloenzyme carbonic anhydrase (CA, EC, CA I-XIV, with a series of phenols was investigated. The inhibition profile by phenols of these CAs was distinct from those of the sulfonamides and their isosteres...
Maya Mori-Hongo et al.
Journal of natural products, 72(1), 63-71 (2008-12-24)
From the roots of Lespedeza cyrtobotrya, 45 flavonoids were isolated along with 20 new and 25 known compounds. Lipophilic flavonoids 2, 3, 7, 9, 11, 28, 30, and 39 exhibited strong inhibitory activities on melanin synthesis in normal human epidermal...
Quan Cheng Chen et al.
Journal of natural products, 71(6), 995-999 (2008-05-29)
Five new pyronane-type monocyclic monoterpenoids, jasminodiol (1), jasminoside H (6), 6'-O-sinapoyljasminoside A (7), 6'-O-sinapoyljasminoside C (8), and jasminoside I (9), together with four known analogues, were isolated from the fruit of Gardenia jasminoides. The structures of the new metabolites were...
Suhee Song et al.
Bioorganic & medicinal chemistry letters, 17(2), 461-464 (2006-10-27)
Oxyresveratrol and resveratrol, with hydroxy substituted trans-stilbene structure, exert potent inhibitory effects on cyclooxygenase, rat liver mitochondrial ATPase activity, and tyrosinase. As the isosteres of oxyresveratrol, a new family of hydroxyl substituted phenyl-naphthalenes were synthesized to show excellent inhibition of...
Michael H Abraham et al.
European journal of medicinal chemistry, 43(3), 478-485 (2007-06-05)
Values of in vitro gas to lung partition coefficients, K(lung), of VOCs have been collected from the literature. For 44 VOCs, application of the Abraham solvation equation to log K(lung) yielded a correlation with R(2)=0.968 and S.D.=0.25 log units. Combination...
Masaaki Fujikawa et al.
Bioorganic & medicinal chemistry, 15(11), 3756-3767 (2007-04-10)
We previously reported a classical quantitative structure-activity relationship (QSAR) equation for permeability coefficients (P(app-pampa)) by parallel artificial membrane permeation assay (PAMPA) of structurally diverse compounds with simple physicochemical parameters, hydrophobicity at a particular pH (logP(oct) and |pK(a)-pH|), hydrogen-accepting ability (SA(HA))...
Soonho Hwang et al.
Bioorganic & medicinal chemistry, 18(15), 5602-5609 (2010-07-10)
On the basis of a hit from random screening, biaryl amide derivatives were prepared in a combinatorial manner via parallel solution-phase synthesis, and their effects on melanocytes were investigated to discover new effective skin depigmenting agents. Among the 120 derivatives...
Tran Minh Ngoc et al.
Journal of natural products, 72(6), 1205-1208 (2009-06-27)
A methanol extract of the twigs of Cinnamomum cassia was found to possess inhibitory activity against tyrosinase. Purification of the MeOH extract afforded four new phenolics, cassiferaldehyde (6), icariside DC (9), cinnacassinol (10), and dihydrocinnacasside (13), together with 10 known...
Christopher Elam et al.
European journal of medicinal chemistry, 46(5), 1512-1523 (2011-03-01)
Two screening protocols based on recursive partitioning and computational ligand docking methodologies, respectively, were employed for virtual screens of a compound library with 345,000 entries for novel inhibitors of the enzyme sarco/endoplasmic reticulum calcium ATPase (SERCA), a potential target for...
Jing Yuan et al.
Nature chemical biology, 5(10), 765-771 (2009-09-08)
Studies of gene function and molecular mechanisms in Plasmodium falciparum are hampered by difficulties in characterizing and measuring phenotypic differences between individual parasites. We screened seven parasite lines for differences in responses to 1,279 bioactive chemicals. Hundreds of compounds were...
Marc Criton et al.
Bioorganic & medicinal chemistry letters, 18(12), 3607-3610 (2008-05-27)
A series of N-hydroxy-N'-phenylthiourea and N-hydroxy-N'-phenylurea analogues were prepared and evaluated as inhibitors of tyrosinase and melanin formation. The most active analogue 1 inhibited mushroom tyrosinase with an IC(50) of around 0.29 microM and also retained a substantial potency in...
Bart van der Burg et al.
Reproductive toxicology (Elmsford, N.Y.), 55, 95-103 (2014-12-22)
There is a great need for alternative testing methods for reproductive toxicants that are practical, fast, cost-effective and easy to interpret. Previously we followed a pragmatic approach using readily available tests, which was successful in predicting reproductive toxicity of chemicals...
Alessio Innocenti et al.
Bioorganic & medicinal chemistry letters, 18(12), 3593-3596 (2008-05-27)
Inhibition of the newest isoform of the metalloenzyme carbonic anhydrase (CA, EC, CA XV, with a series of phenols was investigated. Murine CA XV showed an inhibition profile by phenols distinct of those of the cytosolic human isoforms CA...

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