635300-34-4Relevant academic research and scientific papers
NITROGEN-CONTAINING HETEROCYCLIC AMIDE COMPOUND AND PHARMACEUTICAL USE THEREOF
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, (2019/08/29)
PROBLEM TO BE SOLVED: To provide a nitrogen-containing heterocyclic amide compound having pyruvate dehydrogenase kinase inhibitory activity, or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition containing the same. SOLUTION: The present invention provides a compound of formula [I-a] or formula [II], or a pharmaceutically acceptable salt thereof (a bond of a dotted line: a single bond or a double bond. X1: C, N, O. X2: C, N. R1a: C1-4 alkyl, C1-4 alkyl carbonyl. R2: halogen, cyano, C1-4 alkyl. A1-A7: C, N, O. A8: C, N. R3, R4: H, C1-4 alkyl. Cy1: C4-6 cycloalkyl or the like. Cy2: C3-6 cycloalkyl or the like. m, t, w: 0, 1. n, r, v: 0, 1, 2.) SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT
Enantiospecific synthesis and receptor binding of novel dopamine receptor ligands employing natural 4-hydroxyproline as a practical and flexible building block
Heindl, Cornelia,Huebner, Harald,Gmeiner, Peter
, p. 3153 - 3172 (2007/10/03)
Starting from natural 4-hydroxyproline, an ex-chiral pool approach is described giving access to 2-aminoalkylpyrrolidine derivatives that were used as chiral building blocks for the synthesis of bioactive 2-methoxybenzamide derivatives. The 4-hydroxy substituent can be displaced employing organocuprates as useful carbanion equivalents. Dopamine and serotonin binding studies involving the subtypes D1, D2long, D2short, D3 and D4 as well as 5-HT1A and 5-HT2, respectively, provided interesting insights into stereoselective structure activity relationships. The (2S,4R)-2-aminomethylpyrrolidine derivative ent-66 and the (2R,4S)-2- aminoethylpyrrolidine derivative 68 showed remarkable affinity and preference for the dopamine D3 and D4 receptor subtypes, respectively, both being putatively associated to the symptoms of schizophrenia.
