Abstract: The invention provides compounds of the invention pharmaceutical compositions comprising a compound of the invention, processes for preparing compounds of the invention, intermediates useful for preparing compounds of the invention, and therapeutic methods for treating cancer and other topoisomerase mediated conditions.

Abstract: This invention relates to a method for production of nanoscale size quinacridones through a wet-salt attrition process by combining a crude quinacridone pigment in the presence of (i) an inorganic salt, (ii) an organic liquid in which the quinacridone pigment and salt are substantially insoluble, and (iii) a quinacridone derivative in an amount less than 10 wt. % relative to the quinacridone pigment; discharging the ground quinacridone pigment into water; adding an acid to produce a solution pH of 1.5 or lower; and isolating the quinacridone pigment.

Abstract: The present invention relates to a novel quinacridone pigment compositions, a process using a mixed amine synthesis for the ultimate production of the compositions and to their use as colorants for pigmenting high molecular weight organic materials.

Abstract: The present invention is directed to an aqueous process for reducing particle size of organic pigments by milling the crude pigment in the presence of a water soluble styrene copolymer dispersant, optionally a defoamer, optionally an additive, and greater than about 10 wt. % water, and isolating the organic pigment.

Abstract: The present invention pertains to certain N8,N13-disubstituted quino[4,3,2-kl]acridinium salts of formula (Q?) which inhibit telomerase wherein: p is an integer from 0 to 4; q is an integer from 0 to 3; r is an integer from 0 to 4; each RA is —H or a ring substituent; each RB is —H or a ring substituent; each RC is —H or a ring substituent; RN8 is a nitrogen substituent; RN13 is a nitrogen substituent; and, Q is an anion. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit telomerase, to regulate cell proliferation, and in the treatment of proliferative conditions, such as cancer.

Abstract: A fluorescent probe for measuring magnesium ion, which can selectively form a complex with magnesium ion in aqueous system is disclosed. The fluorescent probe for measuring magnesium ion according to the present invention has the structure represented by the following Formula [I]: (wherein R1 represents a hydrogen atom, metal atom or an ester-forming group; A represents a group which forms a ring structure together with carbon atom 1 and carbon atom 2; and X is a fluorescent group which may form a condensed ring together with the ring containing the group A).

Abstract: Disclosed is a process for forming a N,N?-diarylquinacridone compound comprising the step of reacting a 1,4-dialkylcarboxylate-2,5-bis(N-arylamino) benzene with an iodoaryl compound to form the corresponding 2,5-bis(N-diarylamino) compound. The process is versatile and provides high yields and purity for the synthesis of N,N?-diarylquinacridone compounds.

Abstract: The present invention relates to a process for the synthesis of beta-quinacridone by oxidation in the presence of selected additives that promote the formation of the desired crystal phase and particle size.

Abstract: A process for by oxidizing a quinacridone in a liquid medium with a non-metal oxidant producing a quinacridonequinone.

Abstract: A new high chroma, opaque gamma 2,9-dichloroquinacridone pigment specified by its particle shape and size and characterized by C.I.E color space values in masstone, and a process for its preparation is dislosed. The new gamma 2,9-dichloroquinacridone pigment is especially useful for coloring coating compositions, such as automotive paints, and plastics.

Abstract: A process for the preparation of a quinacridone comprises oxidation of a 6,13-dihydroquinacridone using hydrogen peroxide, wherein a polymeric dispersant is present in the oxidation reaction mixture. The resulting pigment products exhibit greatly improved dispersibility relative to pigments in which the polymeric dispersant is not present during the oxidation reaction.

Abstract: A novel method for the preparation of a beta quinacridone pigment is described by the oxidation of 6,13-dihydroquinacridone in the presence of polyvinyl pyrrolidone, a catalyst and optionally a particulate quinacridone or particle growth inhibitor using hydrogen peroxide as the oxidant.

Abstract: The invention relates to the use of carbopyronine compounds of general formula (I) as marker groups in methods for detecting analytes. The invention also relates to novel carbopyronine compounds and to a method for producing same.

Abstract: The method for preparation quinacridone pigment nanocrystals with sub micrometer to nanometer in average size comprising, supplying supercritical or semi-critical liquid, which dissolves quinacridone pigment, into a specimen tube (ST) composing a reactor possessing a filter of desired opening to the upper stream side and to the down stream side in which quinacridone pigment is set up, flowing out the supercritical or semi-critical liquid in which quinacridone pigment is dissolved from said reactor to a mixing apparatus to which coolant is supplied, and by selecting the kind of supercritical of semi-critical liquid and combination of conditions e.g. supplying speed of each liquids, temperature of the liquid and the reacting pressure.

Abstract: A pigment's etheramine sulfonic acid salt is described. Also described is a method for enhancing the performance of a pigment composition containing an organic pigment, comprising enhancing the dispersion of said pigment by adding to 100 parts of said pigment about 1 to 40 parts of a pigment's etheramine sulfonic acid salt.

Abstract: The present invention relates to colorant of the general formula, wherein A, B and B′, m and m′ and n and n′ are as defined in the description. The colorants can be used for the pigmenting of porous materials and in injekt printing and, in the case of pigmenting, are converted to the insoluble pigment form. In the pigmenting of porous materials, for example in the pigmenting of wood or anodised aluminium in the pores, the colorants yield very good penetration and fastness to light and, in injekt printing, yield very good water-resistance.

Abstract: A process for the preparation of a quinacridone comprises oxidation of a 6,13-dihydroquinacridone using hydrogen peroxide, wherein a polymeric dispersant is present in the oxidation reaction mixture. The resulting pigment products exhibit greatly improved dispersibility relative to pigments in which the polymeric dispersant is not present during the oxidation reaction.

Abstract: A novel method for the preparation of a beta quinacridone pigment is described by the oxidation of 6,13-dihydroquinacridone in the presence of polyvinyl pyrrolidone, a catalyst and optionally a particulate quinacridone or particle growth inhibitor using hydrogen peroxide as the oxidant.

Abstract: An electroluminescent element is disclosed, comprising an electroluminescent material and a fluorescent substance emitting light having an emission maximum at the wavelength different from that of light emitted from the electroluminescent material upon absorption of the light emitted from the electroluminescent material. A color conversion filter is also disclosed, comprising a fluorescent substance emitting light having an emission maximum at the wavelengths of 400 to 700 nm upon absorption of the light emitted from the electroluminescent material.

Abstract: A high chroma, opaque gamma 2,9-dichloroquinacridone pigment specified by its particle shape and size and characterized by C.I.E. color space values in masstone, and a process for its preparation is disclosed. The new gamma 2,9-dichloro-quinacridone pigment is especially useful for coloring coating compositons, such as automotive paints, and plastics.

Abstract: The present invention pertains to certain N8,N13-disubstituted quino[4,3,2-kl]acridinium salts of formula (Q−) which inhibit telomerase wherein: p is an integer from 0 to 4; q is an integer from 0 to 3; r is an integer from 0 to 4; each RA is —H or a ring substituent; each RB is —H or a ring substituent; each RC is —H or a ring substituent; RN8 is a nitrogen substituent; RN13 is a nitrogen substituent; and, Q is an anion. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit telomerase, to regulate cell proliferation, and in the treatment of proliferative conditions, such as cancer.

Abstract: The invention provides low molecular weight or polymeric organic materials in which at least one hydrogen atom is replaced by a group of the formula (A) 1

Abstract: Disclosed is a process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a 1,4-dialkylcarboxylate-2,5-bis(N -arylamino) benzene with an iodoaryl compound to form the corresponding 2,5 -bis(N-diarylamino) compound. The process is versatile and provides high yields and purity for the synthesis of N,N′-diarylquinacridone compounds.

Abstract: Disclosed is a process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a N,N′-unsubstituted quinacridone compound with a haloaryl compound in the presence of a metal or metal compound to arylate the N and N′ positions and form the corresponding N,N′-diarylquinacridone compound. The process is versatile and provides high yields and purity for the synthesis of N,N′-diarylquinacridone compounds.

Abstract: The present invention relates to indolo[3,2-j]phenanthridine compounds and their use in the treatment of cancer and other diseases of humans and animals including parasitic diseases such as those of Apicomplexan origin, compositions containing said compounds and methods of treatment using them.

Abstract: The present invention relates to a process for producing alpha, gamma-I, gamma-II and gamma-III crystal modifications of quinacridone and transparent quinacridone pigments including the solid solutions of various quinacridones, using a variety of tris-aryl-s-triazines, particularly resorcinol triazine derivatives, or aromatic- or heteraromatic-compounds having at least one hydroxyl or keto group bonded to the ring, as an additive, prior to or concurrently with the oxidation of corresponding dihydroquinacridone salts.

Abstract: Organic pigments are conditioned by introducing a liquid prepigment suspension into a miniaturized continuous reactor and thermally treating therein.

Abstract: Disclosed are novel aromatic compounds of the formula(I) wherein G, E, W, Ar, X, Y and Z. The compounds are useful for treating diseases or pathological conditions involving inflammation such as chronic inflammatory diseases. Also disclosed are pharmaceutical compositions containing and processes of making such compounds.

Abstract: Organic pigments are conditioned by introducing a liquid prepigment suspension into a miniaturized continuous reactor and thermally treating therein.

Abstract: The present invention relates to yohimbine dimer compounds, pharmaceutical compositions containing such dimer compounds, methods of making such dimer compounds, and uses thereof.

Abstract: A process for producing beta-phase quinacridone by (a) reacting 2,5-dianilino-terephthalic acid with polyphosphoric acid in the presence of 2,5-dianisidino-terephthalic acid at a reaction temperature of at least 85° C.; (b) diluting the reaction mixture with water; (c) drowning the diluted mixture in a water-miscible alkanol; (d) heating the slurry at a temperature of from 100 to 130° C. at a pressure of 20 to 50 psi; and (e) recovering the beta-phase quinacridone.

Abstract: This invention relates to a process for preparing quinacridone pigment compositions by (a) heating a reaction mixture containing (i) 2,5-dianilinoterephthalic acid or 2,5-dianilino-6,13-dihydroterephthalic acid or a derivative thereof, (ii) about 0.1 to about 5 percent, based on component (a)(i), of 2,5-di(sulfamoylanilino)terephthalic acid and/or 2,5-di(sulfamoylanilino)-6,13-dihydroterephthalic acid or a derivative thereof, (iii) about 0.1 to about 15 percent by weight, based on component (a)(i), of other sulfonyl-containing derivatives of 2,5-dianilinoterephthalic acid and/or 2,5-dianilino-6,13-dihydroterephthalic acid, (iv) about 3 to about 20 parts by weight, per part of component (a)(i), of a dehydrating agent, and (v) optionally, a solvent; (b) drowning the reaction mixture from step (a) with a liquid in which the quinacridone pigment composition is substantially insoluble; and (c) isolating the quinacridone pigment composition.

Abstract: The present invention relates to a process for producing alpha, gamma-I, gamma-II and gamma-III crystal modifications of quinacridone and transparent quinacridone pigments including the solid solutions of various quinacridones, using a variety of tris-aryl-s-triazines, particularly resorcinol triazine derivatives, or aromatic- or heteraromatic-compounds having at least one hydroxyl or keto group bonded to the ring, as an additive, prior to or concurrently with the oxidation of corresponding dihydroquinacridone salts.

Abstract: The present invention relates to methods for preparing a variety of Lamellarin compounds and analogues via a synthetic intermediate, which methods involved the step of performing an intramolecular cyclization of a compound of Formula (I) to produce compounds of Formula(II), wherein the variables are given in the specification.

Abstract: A new polymorphic form of 2,9-dichloroquinacridone having improved pigmentary properties and a method of forming said 2,9-dichloroquinacridone comprising the step of ring closure of appropriately substituted terephthalic acid in sulphuric acid.

Abstract: A process for producing beta-phase quinacridone by (a) reacting 2,5-dianilino-terephthalic acid with polyphosphoric acid in the presence of 2,5-dianisidino-terephthalic acid at a reaction temperature of at least 85° C.; (b) diluting the reaction mixture with water; (c) drowning the diluted mixture in a water-miscible alkanol; (d) heating the slurry at a temperature of from 100 to 130° C. at a pressure of 20 to 50 psi; and (e) recovering the beta-phase quinacridone.

Abstract: An improved process for producing a substantially pure gamma phase a quinacridone pigment or pigment derivative involving preparing an aqueous slurry of a crude quinacridone in the presence of caustic alkali and a non-polar, water immiscible solvent; and heating said slurry at a temperature above about 120° C.

Abstract: A 6,13-dihydroquinacridone derivative of formula I: (MO3S)m—Q—[CH2—(X)—(Y)n]o  (I) wherein: Q represents a 6,13-dihydroquinacridone moiety of formula II; A and B each independently represent a substituent selected from H, F, Cl, C1-C3alkyl and C1-C3alkoxy M represents a metal cation, quaternary N cation or H; X is an aromatic group, a cyclo-hetero aliphatic group with at least one 5 or 6 atom ring or a hetero aromatic group with at least one 5 or 6 atom ring and which is not a phthalimido group; Y is a sulfonic or carboxylic acid or salt thereof; m and n independently from each other are numbers from zero to 2.5; and o is a number from zero to 4, wherein m and o are not zero simultaneously.

Abstract: An improved process for producing a substantially pure gamma phase a quinacridone pigment or pigment derivative involving preparing an aqueous slurry of a crude quinacridone in the presence of caustic alkali and a non-polar, water immiscible solvent; and heating said slurry at a temperature above about 120° C.

Abstract: Heterocycle-condensed morphinoid derivatives of formula (I), or solvates or salts thereof, are potent and selective delta opioid agonists and antagonists and are useful as i.a. analgesics. Pharmaceutical compositions containing such compounds, the use of such compounds as therapeutic agents, a method of treatment comprising the administration of such compounds, and a process for the preparation of such compounds are also described.

Abstract: A new gamma-I type quinacridone pigment characterized by C.I.E color space values in masstone, and a process for its preparation is disclosed. The new gamma quinacridone pigment is especially useful for coloring coating compositions, such as automotive paints, and plastics.

Abstract: The invention relates to novel quinacridone mixed crystal pigments consisting of a) from 82.5 to 99% by weight of unsubstituted &ggr;-phase quinacridone of the formula (I) in which R1 and R2 are hydrogen atoms and b) from 1 to 17.5% by weight of one or more 2,9- and/or 3,10-substituted quinacridones of the formula (I) in which the substituents R1 and R2 are identical or different and are chlorine, bromine or fluorine atoms or C1-C4-alkyl, C1-C4-alkoxy or carboxamido groups which can be substituted by C1-C6-alkyl groups, and R1 can additionally be a hydrogen atom, and to pigment preparations comprising said quinacridone mixed crystal pigments.

Abstract: A process for preparing an unsubstituted or substituted quinacridone of the formula or a solid solution of quinacridones of the formula (I), wherein X and Y are independently 1 or 2 substituents selected from hydrogen, fluorine, chlorine, C1-C3alkyl, C1-C3alkoxy and COOR wherein R is hydrogen or C1-C10alkyl in which a salt of a corresponding 6,13-dihydroquinacridone of formula II  having the same substitutions as the desired quinacridone of formula I, or a mixture of corresponding 6,13-dihydroquinacridones of formula II, is oxidized with an oxygen containing gas in the presence of an aqueous base and a catalytically effective amount of an oxidation catalyst, characterized in that the oxidation is performed in the presence of an polyglycolic reaction medium of formula R1—O—[(CH2)m—(CHR1′)n—O]x—O—R1″  (III).

Abstract: Pigment particle growth and/or crystal phase directors of the following formula:

Abstract: Compounds of formula A(B)x  (I), wherein x is an integer from 1 to 8, A is the radical of a chromophore of the quinacridone, anthraquinone, perylene, indigo, quinophthalone, indanthrone, isoindolinone, isoindoline, dioxazine, azo, phthalocyanine or diketopyrrolopyrrole series that is bonded to x groups B via one or more hetero atoms, those hetero atoms being selected from the group consisting of N, O and S and forming part of the radical A, each group B independently of any other(s) is hydrogen or a group of the formula  at least one group B being a group of the formula The compounds according to the invention are used in high-molecular-weight organic materials, thermo-, photo- or chemo-sensitive recording materials, light-sensitive negative or positive resist compositions, ink compositions for ink-jet printing and color tapes for thermal transfer printing.

Abstract: Pigment particle growth and/or crystal phase directors of the following formula: (MO3S)m—Q—(CH2—(X)—(Y)n)o wherein: Q represents a pigment moiety; M represents a metal cation, quaternary N cation or H; X is an aromatic group, a cyclo-hetero aliphatic group with at least one 5 atom or 6 atom ring or a hetero aromatic group with at least one 6 atom ring and which is not a phthalimido group; Y is a sulfonic or carboxylic acid or salt thereof; m and n independently from each other represent an integer from 0 to 2.5; and o is an integer from 0.05 to 4.

Abstract: Ternary solid solutions useful as pigments are disclosed. The ternary solid solutions result from incorporating a third component, which is a diketopyrrolopyrrole or quinacridone pigment, into the crystal lattice of the mixed crystal formed from equimolar amounts of two different diketopyrrolopyrrole pigments.

Abstract: Linear unsubstituted and substituted quinacridone pigments and quinacridone mixed-crystal pigments are obtained by cyclizing dianilinoterephthalic acid with polyphosphoric acid and then hydrolyzing the ring closure mixture, said mixture being metered into an amount of water or orthophosphoric acid which is such that the final orthophosphoric acid concentration is greater than or equal to 50% by weight in the hedrolysis mixture.

Abstract: A 6,13-dihydroquinacridone derivative of formula I: (MO3S)m—Q—[CH2—(X)—(Y)n]o  (I) wherein: Q represents a 6,13-dihydroquinacridone moiety of formula II; A and B each independently represent a substituent selected from H, F, Cl, C1-C3alkyl and C1-C3alkoxy M represents a metal cation, quaternary N cation or H; X is an aromatic group, a cyclo-hetero aliphatic group with at least one 5 or 6 atom ring or a hetero aromatic group with at least one 5 or 6 atom ring and which is not a phthalimido group; Y is a sulfonic or carboxylic acid or salt thereof; m and n independently from each other are numbers from zero to 2.5; and o is a number from zero to 4, wherein m and o are not zero simultaneously.

Abstract: Dye salts which are free from fiber-reactive radicals and have the formula where Chr is an (m+n)-valent radical of a chromophore from the series of the metal-free or metal-containing phthalocyanines, of the quinacridones, of the mono-, dis- or polyazo dyes, of the anthraquinones or copper formazans, Ar is phenyl or naphthyl each of which is unsubstituted or substituted, x⊕ is a metal cation or ammonium ion, y⊕ is a proton, metal cation or ammonium ion, m is 1 to 6 and n is 1 to 6, the sum of m and n being not more than 7, are used in methods of dyeing or printing polymeric material and in dye preparations.