460087-41-6Relevant academic research and scientific papers
AZETIDIN COMPOUNDS SUITABLE FOR TREATING DISORDERS THAT RESPOND TO MODULATION OF THE SEROTONIN 5-HT6 RECEPTOR
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Page/Page column 44, (2008/12/04)
The present invention relates to compounds of formula (I) wherein A is C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-hydroxyalkyl, C2-C6-alkenyl, C2-C6-haloalkenyl, C3-C6-cycloalkyl, aryl-C1-C4-alkyl, aryl-C2-C4-alkenyl, aryl or hetaryl; --- is a single or double bond; X1 and X2 are N, CRx1, NRx2 or CRx3Rx4; Rx1, Rx3 and Rx4 are H, halogen, CN, NO2, C1-C6-alkyl, C1-C6-alkoxy, C1-C6-alkylcarbonyl, etc. or two geminal radicals Rx3 and Rx4 together with the carbon atom to which they are bound may form a carbonyl group or a 3- to 6-membered carbocyclic or heterocyclic spiro- annulated ring; Rx2 is hydrogen, C1-C6-alkyl, C1-C6-alkylcarbonyl, C1-C6-haloalkyl, etc.; or two vicinal radicals Rx1, Rx2, Rx3 or Rx4 together with X1 and X2 form a five- or six- membered carbocyclic or heterocyclic fused ring; Y1, Y2 and Y3 are N or CRy; Ry is H, halogen, CN, NO2, C1-C6-alkyl, C1-C6-alkoxy, C1-C6-alkylcarbonyl, C1-C6-haloalkyl, etc.; wherein a maximum of 3 of the radicals X1, X2, Y1, Y2 and Y3 are selected from NRx1 and N; R1 is hydrogen, C1-C6-alkyl, C1-C6-hydroxyalkyl, C1-C6-haloalkyl, etc.; R2 is C1-C4-alkyl or C1-C4-haloalkyl; n is 0, 1 or 2; physiologically tolerated acid addition salts and the N-oxides thereof, pharmaceutical composition comprising them, a method for treating medical disorders selected from diseases of the central nervous system, addiction diseases or obesity, said method comprising administering an effective amount of such compounds to a subject in need and the use of such a compound for preparing a pharmaceutical compositions.
Retinoid x receptor modulators
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, (2008/06/13)
The present invention is directed to compounds represented by Structural Formula (I) and pharmaceutically acceptable salts, solvates and hydrates thereof: (I). The invention is also directed to pharmaceutical compositions, methods of use and methods of making compounds represented by Structural Formula (I) and pharmaceutically acceptable salts, solvates and hydrates thereof.
Tandem intramolecular silylformylation and silicon-assisted cross-coupling reactions. Synthesis of geometrically defined α,β-unsaturated aldehydes
Denmark, Scott E.,Kobayashi, Tetsuya
, p. 5153 - 5159 (2007/10/03)
The palladium- and copper-catalyzed cross-coupling reactions of cyclic silyl ethers with aryl iodides are reported. Silyl ethers 3 were readily prepared by intramolecular silylformylation of homopropargyl silyl ethers 2 under a carbon monoxide atmosphere. The reaction of cyclic silyl ethers 3 with various aryl iodides 7 in the presence of [(allyl)PdCl]2, CuI, a hydrosilane, and KF·2H2O in DMF at room temperature provided the α,β-unsaturated aldehyde coupling products 8 in high yields. The need for copper in this process suggested that transmetalation from silicon to copper is an important step in the mechanism. Although siloxane 3 and the product 8 are not stable under basic conditions, KF·2H2O provided the appropriate balance of reactivity toward silicon and reduced basicity. The addition of a hydrosilane to [(allyl)PdCl]2 was needed to reduce the palladium(II) to the active palladium(0) form.
