891772-08-0Relevant articles and documents
Enantioselective Nickel-Catalyzed Alkyne-Azide Cycloaddition by Dynamic Kinetic Resolution
Liu, En-Chih,Topczewski, Joseph J.
, p. 5308 - 5313 (2021)
The triazole heterocycle has been widely adopted as an isostere for the amide bond. Many native amides are α-chiral, being derived from amino acids. This makes α-N-chiral triazoles attractive building blocks. This report describes the first enantioselective triazole synthesis that proceeds via nickel-catalyzed alkyne-azide cycloaddition (NiAAC). This dynamic kinetic resolution is enabled by a spontaneous [3,3]-sigmatropic rearrangement of the allylic azide. The 1,4,5-trisubstituted triazole products, derived from internal alkynes, are complementary to those commonly obtained by the related CuAAC reaction. Initial mechanistic experiments indicate that the NiAAC reaction proceeds through a monometallic Ni complex, which is distinct from the CuAAC manifold.
1, 2, 3, 3A, 8, 8A-HEXAHYDRO-2, 7A-DIADA-CYCLOPENTA [A] INDEN-7-ONE DERIVATIVES WHICH BIND TO NEURONAL NICOTINIC ACETYLCHOLINE SPECIFIC RECEPTOR SITES AND ARE USEFUL IN MODULATING CHOLINERGIC FUNCTION AND IN THE TREATMENT OF ADDICTIVE DISORDERS
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Page/Page column 17, (2008/06/13)
The present invention relates to novel fused bicyclicpyrrolidine pyridone compounds of the formula (I) wherein R, RP and n are as defined herein, their pharmaceutically acceptable salts, pharmaceutical compositions and their use in treating addictive disorders such as the use of tobacco or other nicotine containing products and in the treatment of neurological and mental disorders related to a decrease in cholinergic function.
