What's the difference between aromatic and mesitylene?
Aromatic
Definition:
(a.) Alt. of Aromatical
(n.) A plant, drug, or medicine, characterized by a fragrant smell, and usually by a warm, pungent taste, as ginger, cinnamon, spices.
Example Sentences:
(1) In granulosa cells containing full aromatase activity, treatment with cortisol and dexamethasone did not inhibit aromatization of androstenedione to estrogens whereas two known aromatase inhibitors (dihydrotestosterone and 4-androstene-3, 6, 17-trione) were effective.
(2) The chemical shift changes observed on the binding of trimethoprim to dihydrofolate reductase are interpreted in terms of the ring-current shift contributions from the two aromatic rings of trimethoprim and from that of phenylalanine-30.
(3) Enzyme-inhibiting ability for individual alkylphenols can be estimated based on the quantitative structure-activity relationship developed by Dewhirst (1980) and is a function of the free hydroxyl group, electron-donating ring substituents, and hydrophobic aromatic ring substituents.
(4) N-heterocyclic aromatics are environmentally important carcinogenic pollutants produced by incomplete combustion of organic material.
(5) Deviations from isotropic motion observed for the non-aromatic moieties are discussed.
(6) Aromatic adducts present in the digest that were resistant to nuclease P1 were thus 32P-labelled while unmodified nucleotides were not.
(7) The possible occupational cause of the disease, as more solvents in the mud have the structure of aromatic hydrocarbons is discussed.
(8) Interaction between aromatic diamidines (pentamidine, propamidine, and stilbamidine) and nucleic acids were studied to elucidate the mechanism underlying renal toxicity included by pentamidine in patients.
(9) The D-Phe peptides, which are cleaved especially rapidly by thrombin in water, have structures (in deuterated DMSO) in which the aromatic ring of the D-Phe residue is folded back over the Val or Pip residue.
(10) Results of enzyme immunoassay also showed that dipeptides composed of two aromatic amino acids were more inhibitory than dipeptides of which one residue was aromatic amino acid.
(11) The enzyme has a significant preference for substrates with a P1 Phe over those with the other aromatic amino acids Tyr and Trp.
(12) Their absorption spectra are at sufficiently long wavelength to be unobscured by cellular chromophores such as nucleotides and aromatic amin acids.
(13) As experimental findings indicated inhibitory action of aromatic retinoid on microtubule polymerisation and collagen metabolism of mesenchymal cells, we decided to treat 5 patients suffering from progressive systemic sclerosis as well as 3 patients with Sharp's syndrome with aromatic retinoid (Tigason).
(14) The results also demonstrated that there was not any apparent correlation between the receptor-binding avidities and in vitro monooxygenase enzyme-induction potencies for the most active polynuclear aromatic hydrocarbons.
(15) The complexes are produced by attachment of a carbon of the butenolide ring to an aromatic carbon of the nitro compound with formation of a charge-delocalized cyclohexadienate anion.
(16) Aromatization of [3H]androstenedione and [3H]19-hydroxyandrostenedione to [3H]estrone has been demonstrated to occur in one to two week old primary monolayer cultures of fetal rat hypothalamus.
(17) Both main-stream and side-stream cigarette smoke condensates and some fractions, containing water-soluble bases, water-insoluble bases, and polycyclic aromatic hydrocarbons, were found to induce AHH activity in lung and liver, the lung being induced to the greatest extent.
(18) The greater frequency of dysovulation in obese women, notably those who put on weight rapidly, is accompanied by numerous hormonal changes, including reduced sex hormone-binding globulin, increased ovarian and adrenal androgen production, increased peripheral aromatization of androgens to oestrogens, and altered gonadotropin pulsatile secretion.
(19) R-(+)-Nicotine is a substrate Km = 1.42 X 10(-5)M for an SAM-dependent guinea pig lung aromatic azaheterocycle N-methyltransferase, whereas S-(-)-nicotine acts as a competitive inhibitor (Ki = 6.25 X 10(-5)M) of the N-methylation of its antipode.
(20) In the group of patients with the hyperkinetic form the most significant changes were seen for valine, methionine, serine, alanine and cystine, while as the spectrum of aminoacids of the aromatic line is practically unchanged.
Mesitylene
Definition:
(n.) A colorless, fragrant liquid, C6H3(CH3)3, of the benzene series of hydrocarbons, obtained by distilling acetone with sulphuric acid.
Example Sentences:
(1) The corresponding mesitylene derivatives gave analogous results, whereas 4(5)-(2-methylphenyl)imidazole was obtained from 2-methylphenacyl bromide as expected according to the Bredereck's reaction.
(2) Seven components of gasoline (isopentane, n-pentane, 2-methylpentane, benzene, 2-methylhexane, 3-methylhexane and toluene) and five of kerosene (xylene, C9H20, mesitylene, pseudocumene and C11H24) were chosen as indicators with a coefficient of variation of 5-24%.
(3) Administration of mesitylene (1,3,5-trimethylbenzene) by gastric tube for 3 days (5 mmoles per kg daily) increased cytochrome P-450 concentration, specific activity of NADPH-cytochrome c reductase and ethanol metabolism.
(4) was employed to suppress the side reaction, O-mesitylene-2-sulfonation of the Tyr residue.
(5) Aliphatic hydrocarbons with carbon numbers over 9 as well as the aromatics with carbon number 9 group including cumene, mesitylene, pseudocumene and 1,2,3-trimethylbenzene were determined by the solvent extraction method following exposure to kerosene vapour.
(6) Significant isotope effects were not associated with the formation of the other phenolic isomers of nitrobenzene, methyl phenyl sulfone, or methyl phenyl sulfide or with the formation of phenolic products from anisole, bromobenzene, chlorobenzene, fluorobenzene, benzonitrile, naphthalene, zoxazolamine, acetanilide, biphenyl, diphenylhydantoin, benzene, o- and p-xylene, toluene, and mesitylene.
(7) The basic structure of the compounds is that of mesitylene where each of the methyl groups has been substituted with a 3- or 4-amidinophenoxy moiety.
(8) With this enzyme a Ki value of 2.43-10(-8) M was recorded for alpha,alpha',alpha''-tris(4-amidino-2-bromophenoxy)mesitylene at pH 8.1 and 37 degrees C. The most potent thrombin inhibitor, alpha,alpha',alpha''-tris(3-amidinophenoxy)mesitylene, had a Ki value of 6.51-10(-7) M and was also a strong overall anticoagulant.
(9) Particular attention was paid to aromatic hydrocarbon components of farbasol: ethyltoluenes, propylbenzene, isopropylbenzene, mesitylene, hemimelitene, pseudocumene, diethylbenzenes and cymene.
(10) When other aromatics (anisole, p-xylene, mesitylene) were photolyzed with maleimide, the resulting photoproducts were found to be inactive.
(11) The effect of an affinity modifier of myosin ATPase representing a mixed anhydride of AMP and mesitylene carboxylic acid (AMP-MA) on myosin with protected active centers was studied.
(12) A new devised arginine derivative, NG-mesitylene-2-sulfonylarginine, Arg(Mts), was employed for the synthesis of hypothalamic substance P and neurotensin.
(13) Condensation of 10 with 2',3'-di-O-acetyladenosine was accomplished by using 1-(mesitylene-2-sulfonyl)-3-nitro-1,2,4-triazole (MSNT) as coupling agent, and removal of the blocking groups gave adenosine 5'-[(alpha-D-glucopyranosylhydroxyphosphinyl)methyl]phosphonate (20).
(14) Cell surface Tos-Arg-OMe esterase activity was inhibited by aprotinin, benzamidine, pentamidine, and a tris-amidine derivative (alpha,alpha',alpha''-tris(3-amidinophenoxy)mesitylene).
(15) A new phosphorylating agent, S-(N-monomethoxytritylaminoethyl)-O-(O-chlorophenyl) phosphorothioate, was prepared and reacted with a 5'-hydroxyl group of an oligonucleotide using 1-mesitylene-sulfonyl-3-nitrotriazole (MSNT) as a condensing agent.
(16) Phenolic products obtained on isomerization of the three arene oxides of toluene, the nine arene oxides of ortho-, meta-, and para-xylene, the arene oxide of mesitylene, and 2-methyl and 1,2-dimethylnaphthalene-1,2-oxides are compared to the phenolic products obtained by hepatic metabolism of the parent aromatic hydrocarbons.