摘要:
Methods of treating or suppressing mitochondrial diseases, such as Friedreich's ataxia (FRDA), Leber's Hereditary Optic Neuropathy (LHON), mitochondrial myopathy, encephalopathy, lactacidosis, stroke (MELAS), or Kearns-Sayre Syndrome (KSS) are disclosed, as well as compounds useful in the methods of the invention. Methods and compounds useful in treating other disorders are also disclosed. Energy biomarkers useful in assessing the metabolic state of a subject and the efficacy of treatment are also disclosed. Methods of modulating, normalizing, or enhancing energy biomarkers, as well as compounds useful for such methods, are also disclosed.
摘要:
The present invention relates to methods for treating an infectious disease in a subject in need thereof via administration of a therapeutically effective amount of compounds described herein. The methods may utilize particular compounds, for example, a quinoline, a hydrazone, a quinone, or a pyrimidine derivatives thereof or a pharmaceutical salts thereof.
摘要:
The present invention relates the use of 2,3-dihalonaphthoquinone compounds of Formula I wherein R1 and R2 are leaving groups like halogens selected from the group comprising Cl, Br, I and F and the R1 and R2 may be the same halogen or may contain different halogen groups, or sulphonyl groups, for making napthoquinone compounds of Formula IA wherein X is any aryl, heteroaryl, alkyl, cyclohexyl, substituted cylohexyl groups and the like.
摘要:
Disclosed herein is a novel process for preparation of atovaquone. The process includes reacting 1,4-naphthoquinone with trans-4-(4-chlorophenyl) cyclohexane carboxylic acid followed by halogenation to obtain a dihalo-compound. Further, dehydrohalogenation of the dihalo-compound produces a monohalogeno-compound which under goes hydrolysis to produce atovaquone. The invention also discloses atovaquone in a substantially pure and well defined polymorphic form designated as “Form IPCA-ATO,” and the preparation thereof.
摘要:
Disclosed herein is a novel process for preparation of atovaquone. The process includes reacting 1,4-naphthoquinone with trans-4-(4-chlorophenyl) cyclohexane carboxylic acid followed by halogenation to obtain a dihalo-compound. Further, dehydrohalogenation of the dihalo-compound produces a monohalogeno-compound which under goes hydrolysis to produce atovaquone. The invention also discloses atovaquone in a substantially pure and well defined polymorphic form designated as “Form IPCA-ATO,” and the preparation thereof.
摘要:
There are provided a heteroacene derivative having an excellent oxidation resistance and capable of forming a semiconductor active phase by a coating process, and an oxidation-resistant organic semiconductor material using the same, as well as an organic thin film.[Means for Resolution] A heteroacene derivative represented by the formula (1) is obtained by tetrametalation of a tetrahaloterphenyl derivative with a metalation agent and subsequent treatment of the resulting compound with reaction agents: wherein the substituents R1 to R4 are the same or different and each represents a hydrogen atom, a fluorine atom, a chlorine atom, an aryl group having 4 to 30 carbon atoms, an alkyl group having 3 to 20 carbon atoms, or a halogenated alkyl group having 1 to 20 carbon atoms; T1 and T2 are the same or different and each represents sulfur, selenium, tellurium, oxygen, phosphorus, boron, or aluminum; l and m each is an integer of 0 or 1; and rings A and B are the same or different and each has a structure represented by the following formulae (A-1) or (A-2).
摘要:
A process for preparing substituted pentacene compounds comprises the step of cyclizing substituted bis(benzyl)phthalic acids using an acid composition comprising trifluoromethanesulfonic acid, the substituted bis(benzyl)phthalic acids being represented by the following general formulas: wherein each R (that is, each of the groups R1 through R8) is independently an electron-donating group, a halogen atom, a hydrogen atom, or a combination thereof.
摘要:
The present invention provides a process for preparing an aromatic bromide or aromatic iodide from an aromatic amine derivative using nitrite anion and halodimethylsulfonium halide generated in situ from hydrobromic acid/DMSO or hydriodic acid/DMSO. The process for producing compounds of the formula (1) is disclosed (1) wherein X is bromine or iodine: Y is carbon or nitrogen; R1, R2, R3, R4 and R5 which may be the same or different and are selected independently from the group consisting of a hydrogen, a hologen, a C1-C8 alkyl, a C1-C10 alkoxy, a nitro, a formyl, an aryl, a benzyl, a C2-C10 alkylcarbonyl and an arylcarbonyl, provided that adjacent groups as selected from R1, R2, R3, R4 and R5 may combine to form a ring.
摘要:
The present invention relates to a process for the conversion of phenol to hydroquinone and quinones. More particularly this invention relates to a process for the oxidation of phenol to a mixture of 1,4-benzoquinone and hydroquinone using an oxidant in the presence of titanium superoxide as a reusable catalyst in a liquid phase condition.
摘要:
Substituted phenanthrene-9,10-diones in accord with structural diagram I, 1 compositions thereof and methods for the use thereof, for the treatment of T cell mediated conditions such as autoimmune diseases and organ graft rejection. In compounds of the invention, R1 at each occurrence is independently selected from hydrogen, halogen, NH-tosyl, N-di-tosyl, NH2, NO2, NHnullCOnullR2, COnullNHnullR2, Ar, (CH2)nCH(COOH)R3 COR3 and NHCOCH2CH(COOH)NHR4, where R2, R3 and R4 are a selected from a variety of substituted or unsubstituted alkyl and aryl groupstand oligopeptides.