Abstract: A compound selected from those of formula (I): 1

Abstract: The invention relates to compound of formula (I): wherein: represents a single or double bond, R0 represents hydrogen or hydroxy or alkoxy, R1 and R2, which are identical or different, each represents hydrogen or halogen or alkyl, alkoxy, hydroxy, polyhaloalkyl, nitro or optionally substituted amino or  wherein m represents an integer such that 1≦m≦4, or form together with the carbon atoms carrying them an aromatic or non-aromatic, mono- or bi-cyclic group having from 5 to 12 ring members and optionally containing 1 or 2 hetero atoms selected from O, S and N, R3 represents hydrogen or aryl, heteroaryl, cycloalkyl, optionally substituted alkyl or a group of formula COR7 wherein R7 represents aryl, optionally substituted alkyl, optionally substituted amino or OR10 wherein R10 represents aryl or optionally substituted alkyl, X represents oxygen or sulphur or —CH2— or —CH2—CH2—, Ar represents aryl, heteroaryl or arylalkyl, its op

Abstract: A method for the preparation of a compound of general Formula: or pharmaceutically acceptable derivatives and salts, racemates, isomers and/or tautomers thereof comprising cyclizing an azomethine ylide of general Formula: wherein, A is a cyclic or non-cyclic group; Z is a carbon or a heteroatom; n is selected from 0, 1, 2, or 3; W, X and Y may be the same of different and each are selected from hydrogen; optionally substituted alkyl, alkenyl, alkynyl, amino, alkoxy, alkinoxy, alkynoxy, aryl, alkylthio, heterocyclyl; carboxy, carboxy ester, carboxamido, acyl, acyloxy, mercapto, halogen, nitro, sulfate, phosphate, cyano and optionally protected hydroxy; or W and X, together with the nitrogen and carbon atoms to which they are attached, form a saturated or unsaturated nitrogen containing heterocyclic group which may be optionally substituted or optionally fused to a saturated or unsaturated carbocyclic group, aryl group or heterocyclic group is provided.

Abstract: A compound selected from those of formula (I): wherein: X and Y represent hydrogen, halogen, hydroxy, mercapto, cyano, nitro, alkyl, alkoxy, trihaloalkyl, optionally substituted amino, methylenedioxy, or ethylenedioxy, R1 represents hydrogen, or alkyl, R2 represents hydrogen, hydroxy, alkyl, alkoxy, alkylcarbonyloxy, or optionally substituted amino, R3 and R4 represent hydrogen, or alkyl, R5 and R6 represent —O—CO—U—V wherein U and V are as defined in the description, or Z as defined in the description, it being understood that at least one of the R5 and R6 groups represents —O—CO—U—V, their isomers, N-oxides, and pharmaceutically-acceptable acid or base addition salts thereof, and medicinal products containing the same which are useful in the treatment of cancer.

Abstract: The invention relates to novel naphthopyran-type compounds having a lactam-type 6-membered ring annelated in position C5-C6. These compounds have the formula (I) given below: These compounds (I) have interesting photochromic properties. The invention also relates to their preparation, to their applications as photochromes, as well as to the compositions and (co)polymer matrices containing them.

Abstract: The invention is an innovative, economical chemical compound 1-phenyl-5-(p-methoxyphenyl)-3-[1,8-naphthoylene-1′,2′-benzimidazol-4-yl]-2-pyrazol of the general formula 1: 1

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: The present invention provides a short, convergent total synthesis of camptothecin and related compounds which consists of a novel 4+1 radical annulation. The present invention also provides novel chemical intermediates for such 4+1 radical annulations.

Abstract: A compound selected from those of formula (I): in which: X and Y represent hydrogen, halogen, hydroxy, mercapto, cyano, nitro, alkyl, alkoxy, trihaloalkyl, optionally substituted amino, methylenedioxy, or ethylenedioxy, R1 represents hydrogen, or alkyl, R2 represents hydrogen, hydroxy, alkyl, alkoxy, alkylcarbonyloxy, or optionally substituted ammo, R3 and R4 represent hydrogen, or alkyl, A represents —CH═CH—, or —CH(R5)—CH(R6)— wherein R5 and R6 are as defined in the description, their isomers, N-oxides, and pharmaceutically-acceptable acid or base addition salts thereof, and medicinal products containing the same which are useful in the treatment of cancer.

Abstract: Compounds of the formula (I) in which the substituents are as defined in claim 1 are valuable colorants for the mass coloring of polymers, with fluorescence property, in electrophotographics toners and developers, in powders coating materials and ink-jet inks.

Abstract: The invention relates to new tetracyclic analogues of camptothecin, their preparation processes, their use as medicaments and the pharmaceutical compositions containing them. Said analogues, which include in particular 3-hydroxy-3-(4-oxo-4,6-dihydroindolizino [1,2-b] quinoline-2-yl)pentanoic acid, have a powerful biological activity inhibiting topoisomerase I and/or topoisomerase II.

Abstract: The present invention relates to novel naphthopyrans having a cyclic group annelated in position 6,7. These naphthopyrans have formula (I) given below: These compounds (I) have advantageous photochromic properties. The invention also covers a method of preparing these naphthopyrans, as well as their applications as photochromes and compositions and (co)polymers matrices comprising them.

Abstract: A method for the preparation of oxycodone, and salts thereof, from codeine comprising oxidation of codeine to codeinone, formation of an dienolsilyl ether congener of codeinone in strong amine base, oxidation of the dienolsilyl ether congener using peracetic acid, and hydrogenation of the resulting 14-hydroxycodeinone product.

Abstract: A conductive organopolysiloxane composition is provided which includes (A) 100 parts by weight of an organopolysiloxane; and (B) 0.1 to 800 parts by weight of a conductive material obtained by subjecting a member selected from the group consisting of a conductive metal, a conductive metal compound, a filler surface-treated with a conductive metal and a filler surface-treated with a conductive metal compound, to surface treatment with a compound selected from the group consisting of a compound represented by the formula (1) and a compound represented by the formula (2). ##STR1## wherein R.sup.1 represents --O-- or --NH--, and R.sup.2 represents a hydrogen atom or a phenyl group. This composition is useful for the formation of a silicone rubber having a sufficient electrical conductivity and also stably retainable of electrical conductivity almost without undergoing a change in electrical conductivity even in a high-temperature environment.

Abstract: A quinone imine enediyne possessing cytotoxic activity towards cancer cells having general structure (I) wherein R.sub.1, R.sub.2 and R.sub.3 are independently the same or different and are H, Br, Cl, F, NH.sub.2, CO.sub.2 H, OH, linear or branched alkyl, etc.; wherein R.sub.4 is H, OH or linear or branched alkoxy, linear or branched alkoxycarbonyl, etc.; wherein R.sub.5 is H, Br, Cl, F, O.dbd., OH or S--SR, or linear or branched alkyl, etc.; wherein R.sub.6 is H, Br, Cl, F, CO.sub.2 H, OH or S--SR', or linear or branched alkyl, etc.; wherein R.sub.7 is H, OH or S--SR", or linear or branched alkyl, linear or branched alkoxycarbonyl, linear or branched alkoxy or linear or branched hydroxyalkyl; and wherein R, R' and R" are independently the same or different and are linear or branched alkyl, linear or branched acyl or linear or branched alkoxyalkyl.

Abstract: The present invention describes a family of fluorescent indicators for metal cations. The indicators are fluorophore conjugates of pyridyl-based metal ion chelators. The indicators are very sensitive detection as quantification reagents for a variety of metals, in a variety of oxidation states, even in the presence of high concentrations of Ca.sup.2+, Na.sup.+, or K.sup.+ or other ions, such as is found in seawater, making them highly useful for assaying physiological samples, biological samples, or environmental samples.

Abstract: A novel 4-acylaminopyridine derivative represented by the following formula (I) is disclosed. ##STR1## The 4-acylaminopyridine derivative of the present invention is useful as a medicine for treating disturbances of memory such as senile dementia and Alzheimer's disease, since it has an action of directly activating malfunctioned cholinergic neuron.

Abstract: To produce defined isomer mixtures of compounds with spirocyclic beta-aminocarboxyl and/or beta-aminocarbonyl systems the invention supposes that they be dissolved in solvents which have good dissolving power for these compounds, whose relative permittivity is sufficient to stabilize the amphoteric intermediates occuring in isomerization, which as proton donors constitute hydrogen bridges, whose basicity is less than that of the compounds for isomerization and whose boiling point is so high that an adequate reaction speed can be attained by raising temperature. Further, the invention proposes that the isomerization be prevented, influenced, or terminated by altering at least one of these factors and or by altering the temperature.

Abstract: A novel 4-acylaminopyridine derivative represented by the following formula (I) is disclosed. ##STR1## The 4-acylaminopyridine derivative of the present invention is useful as a medicine for treating disturbances of memory such as senile dementia and Alzheimer's disease, since it has an action of directly activating malfunctioned cholinergic neuron.

Abstract: A condensed heterocyclic compound having a structure represented by formula (I): ##STR1## wherein the substituents are as defined in the specification herein.

Abstract: A fused ring system compound is disclosed that contains an epoxide group on one side of the fused rings and an enediyne macrocyclic ring on the other side of the fused rings. The compounds have DNA-cleaving, antimicrobial and tumor growth-inhibiting properties. Chimeric compounds having the fused ring system compound as an aglycone bonded to (i) a sugar moiety as the oligosaccharide portion or (ii) a monoclonal antibody or antibody combining site portion thereof that immunoreacts with target tumor cells are also disclosed. Compositions containing a compound or a chimer are disclosed, as are methods of preparing a compound.

Abstract: Anticancer compounds of formula I: ##STR1## and pharmaceutically acceptable salts thereof, wherein: R.sup.1, R.sup.2 and R.sup.3 are independently selected H, CH.sub.3, NH.sub.2, NO.sub.2, and CN;R.sup.9 and R.sup.10 are H or alkyl or halo, X.sup.1 and Y.sup.1 or X.sup.2 and Y.sup.2, when present, join together to form, independently, a six membered 1N heterocycle substituted with 1-2 R.sup.3 ; or the group: ##STR2## wherein one of W or Z is C.dbd.O and the other is C.dbd.O, NH, S or O; or when X.sup.2 and Y.sup.2 are not joined together and when R.sup.2 is in the 4-position, then X.sup.2 and R.sup.2 may join together to form an ethylene bridge; are disclosed.

Abstract: A novel 4-acylaminopyridine derivative represented by the following formula (I) is disclosed. ##STR1## The 4-acylaminopyridine derivative of the present invention is useful as a medicine for treating disturbances of memory such as senile dementia and Alzheimer's disease, since it has an action of directly activating malfunctioned cholinergic neuron.

Abstract: A novel series of polycyclic amines, derivatives, methods of making the compounds, novel intermediates, compositions containing them, and methods for using them in the treatment and prevention of cerebrovascular disorders are disclosed.

Abstract: Novel fluorescent dyes based on the rhodol structure are provided. The new reagents contain functional groups capable of forming a stable fluorescent product with functional groups typically found in biomolecules or polymers including amines, phenols, thiols, acids, aldehydes and ketones. Reactive groups in the rhodol dyes include activated esters, isothiocyanates, amines, hydrazines, halides, acids, azides, maleimides, aldehydes, alcohols, acrylamides and haloacetamides. The products are detected by their absorbance or fluorescence properties. The spectral properties of the fluorescent dyes are sufficiently similar in wavelengths and intensity to fluorescein or rhodamine derivatives as to permit use of the same equipment. The dyes, however, show less spectral sensitivity to pH in the physiological range than does fluorescein, have higher solubility in non-polar solvents and have improved photostability and quantum yields.

Abstract: A novel series of polycyclic amines, derivatives, methods of making the compounds, novel intermediates, compositions containing them, and methods for using them in the treatment and prevention of cerebrovascular disorders are disclosed.

Abstract: A novel series of polycyclic amines, derivatives, methods of making the compounds, novel intermediates, compositions containing them, and methods for using them in the treatment and prevention of cerebrovascular disorders are disclosed.

Abstract: The compound having the formula: ##STR1## wherein R.sup.6 is a hydrogen atom or an alkanoyl group, or a salt thereof and a process thereof.

Abstract: There are described novel dyes of the formulae ##STR1## in which R.sub.1 and R.sub.2 independently of one another are each hydrogen, unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, and R.sub.1 and R.sub.2 together with the nitrogen atom, and optionally with the inclusion of further hetero atoms, can also form a 5- to 7-membered heterocycle, or one of the radicals R.sub.1 or R.sub.2 can be linked with the carbon atoms, in the o-position with respect to the amino group, of the ring A to form a fused-on, saturated, unsubstituted or substituted 5- or 6- membered ring,X is .dbd.NR.sub.3, .dbd.NCOR.sub.4, ##STR2## .dbd.NH or .dbd.O, wherein R.sub.3 is alkyl or unsubstituted or substituted phenyl,R.sub.4 is unsubstituted or substituted alkyl, aralkyl, aryl, vinyl, alkoxy, phenoxy or amino, andR.sub.5 is cyano, carbalkoxy, or unsubstituted or substituted carbonamide, andR.sub.

Abstract: Water-soluble dyestuffs of the formula ##STR1## in which Y is oxygen or an imino group, R.sup.1 and R.sup.2 are hydrogen, halogen or lower alkyl or lower alkoxy, n is 1 to 3 and Z is a cation, are useful for fluorescent inks.