Abstract:
Gegenstand der vorliegenden Erfindung sind neue Verbindungen mit fluorierten Endgruppen, deren Verwendung als oberflächenaktive Substanzen und Mittel enthaltend diese Verbindungen.
Abstract:
The present invention is directed to a simple and economical process for the preparation of 8-chloro-1-methyl-2,3,4,5-tetrahydro-1 H -benzo[ d ]azepine via novel intermediates and a highly selective asymmetric synthesis leading to enantiopure ( R )-8-chloro-1-methyl-2,3,4,5-tetrahydro-1 H -benzo[ d ] azepine or its ( S )-enantiomer, in order to avoid or overcome chemical optical resolution.
Abstract:
Novel cytotoxic polyamine analogues are disclosed. These analogues are useful pharmaceutical agents for treating diseases where it is desired to inhibit cell growth and/or proliferation, for example cancer and post-angioplasty injury.
Abstract:
The present invention relates to new derivatives of 6-(4-phenylbutoxy)hexylamine having the general formula (I) wherein R1 is CHO, or CHOR3OR4, wherein R3 and R4 are independently C1-C6 alkyl, aralkyl or can form cyclic acetals with 5 or 6 members; R2 is H, benzyl or a group alkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl or acyle; the invention also relates to the process for producing them. The invention also relates to a new process for producing salmeterol or the pharmaceutically acceptable salts thereof and which is characterized in that an organometallic compound is reacted with a compound having the general formula (I) wherein R1 is CHO and R2 is alkyloxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl or an acyl group.
Abstract translation:本发明涉及新的6-(4-苯基丁氧基)通式(I),其中的己胺:R 1是CHO或CHOR3OR4,其中R3和R4独立地是C1-C6烷基,芳烷基或缩醛形式 5或6个成员的环状; R 2是H,苄基或烷氧基羰基,芳氧基羰基,芳烷氧基羰基或酰基; 并涉及获取它的过程。 本发明还涉及用于获得沙美特罗或其药学上可接受的盐的新方法,其特征在于进行有机金属化合物与其中进行R 1的通式(I)的化合物的反应。 CHO和R2是烷氧基羰基,芳氧基羰基,芳烷氧基羰基或酰基。
Abstract:
One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming reactions. The subject processes provide improvements in many features of the transition metal-catalyzed reactions, including the range of suitable substrates, reaction conditions, and efficiency.
Abstract:
This invention relates to the post-synthetic chemical modification of RNA at the 2'-position on the ribose ring via a copper catalyzed Huisgen cycloaddition ("click" chemistry: Kolb, Sharpless Drug Discovery Today 2003, 8, 1128). The invention 1) avoids complex, tedious multi-step syntheses of each desired modified ribonucleoside; 2) allows diverse chemical modifications using high-fidelity chemistry that is completely orthogonal to commonly used alkylamino, carboxylate and disulfide linker reactivities; 3) allows introduction of functional groups that are incompatible with modern automated solid-phase synthesis of RNA and subsequent cleavage-deprotection steps; 4) allows introduction of functional groups useful as targeting ligands; and 5) enables high-throughput structure-activity relationship studies on chemically modified RNA in 96-well format.
Abstract:
The invention relates to a process for preparing α-aminoacetals substantially in racemic form, comprising a step of oxidizing optically enriched α-aminoacetals to the corresponding oximes, in the presence of a catalyst, and a step of reducing the oximes thus obtained.
Abstract:
The invention relates to novel triazolopyrimidines of formula (I) in which R1, R2, R3 and X have the meaning given in the description, a method for the production of said novel materials and the use thereof for combating undesired micro-organisms and animal pests. The invention further relates to novel amines of formula (IIIa) in which R4 has the meanings given in the description and method for production thereof.