摘要:
The present invention refers to analogues of 1,3-bis(4-nitrophenyl)triazenes, their pharmaceutically acceptable salts and N-acyl derivatives for the treatment of different types of tumours. Said compounds show cytotoxicity at very low concentrations (IC50 0.22 to 12.8 μM), and good solubility. These compounds can be used in the treatment of tumour patients as single drugs or in combination with other cytostatics.
摘要:
The present invention relates to novel triazene compounds, to a process for their preparation, to pharmaceutical compositions comprising them, and to the use thereof in the treatment of cancer diseases in humans. The novel triazene compounds are distinguished, as compared with the known triazene compounds, by improved activity while at the same time having reduced toxicity, that is to say by fewer side-effects.
摘要:
A photosensitive adhesive composition of the polymerizable resin type, the hardening of which occurs by polymerization and/or reticulation, includes:—initiators for at least one chain polymerization reaction to guarantee the hardening of the composition and a sufficient quantity of at least one bifunctional monomer, including a photolabile center with at least one photolabile entity and at least two polymerizable units, connected by covalent skeletons to the photolabile center and located away from the cleavage sites of the photolabile center, such that the composition loses the integrity and adhesivity thereof under the influence of a reticulating radiation causing the cleavage of the photolabile sites. The composition is particularly of application in dentistry.
摘要:
A method of colouring porous material, especially human hair, is described, which method comprises applying to the material being coloured, in any desired order successively, or simultaneously, a) at least one capped diazonium compound of Formula (1) and/or at least one compound of Formula (2) and/or at least one compound of Formula (3) wherein Q is an unsubstituted or substituted aromatic or heterocyclic residue, R is the radical of an unsubstituted or substituted, water-soluble aliphatic or aromatic amine, and T is an unsubstituted or substituted, water-soluble aliphatic or aromatic residue, wherein at least one of the groups must contain a radical imparting water solubility, and a) at least one water-soluble coupling component under conditions such that, initially, coupling does not take place, and then causing the capped diazonium compound present on the material to react with the coupling component.
摘要:
Novel catalysts of the general formulaMX.sub.a Y.sub.b,in whichM is Pt, Pd, Rh, Ru, Os or Ir,X is a triazene, tetrazene, tetrazadiene or pentazadiene ligand,Y is a ligand selected from Cl, Br, I, NH.sub.3, P(C.sub.2 H.sub.5).sub.3, P(C.sub.6 H.sub.5).sub.3, H, CO, 1,5-cyclooctadiene, pyridine, bipyridine, acetate, acetylacetonate, phenylnitrile, ethylenediamine, acetonitrile, 2,5-norbornadiene, nitrate, nitrite, H.sub.2 O, benzene, diphenylphosphinoethane and 1,3-divinyl-1,1,3,3-tetramethyldisiloxane,a is 1, 2, 3 or 4 andb is 0 or an integer from 1 to 6, are described.The catalysts promote the addition of Si-bonded hydrogen onto an aliphatic multiple bond, in which the catalysts are activated by heating at temperatures of 50.degree. to 250.degree. C., by irradiation with light, by addition of Bronsted acids and/or by addition of acid-forming agents.The catalysts are used in addition crosslinking organopolysiloxane compositions and for the reaction of organosilicon compounds containing Si-bonded hydrogen atoms with organic compounds containing aliphatic multiple bonds.
摘要翻译:通式为MXaYb的新型催化剂,其中M为Pt,Pd,Rh,Ru,Os或Ir,X为三氮烯,四唑,四唑或戊二烯配体,Y为选自Cl,Br,I,NH 3, P(C 2 H 5)3,P(C 6 H 5)3,H,CO,1,5-环辛二烯,吡啶,联吡啶,乙酸乙酯,苯基腈,乙二胺,乙腈,2,5-降冰片二烯,硝酸盐,亚硝酸盐, 二苯基膦基乙烷和1,3-二乙烯基-1,1,3,3-四甲基二硅氧烷,a为1,2,3或4,b为0或1〜6的整数。 催化剂促进将Si键合的氢添加到脂肪族多重键上,其中催化剂通过在50℃至250℃的温度下加热,通过光照射,通过加入布朗斯台德酸和/或通过加成来活化 的成酸剂。 催化剂用于另外交联的有机聚硅氧烷组合物,并且用于使含有Si键合的氢原子的有机硅化合物与含有脂肪族多键的有机化合物的反应。
摘要:
Provided are compositions comprising linked diaryl compounds that possess anticancer properties. Methods of use are also disclosed herein. The method comprises administering an effective amount of a compound described herein to an individual in need thereof.
摘要:
A process for the preparation of 2-substituted-1,4-benzenediamines, a cosmetically acceptable salt thereof, or mixture thereof. The process according to the present invention is a particularly cost effective process in that it avoids sophisticated chemical steps which requires special equipment or expensive catalysts and in that it comprises a recycling step of one of the starting materials, namely the 2-substituted aniline.