Tricyclic Pyrazoles. 4. Synthesis and Biological Evaluation of Analogues of the Robust and Selective CB2 Cannabinoid Ligand 1-(2‘,4‘-Dichlorophenyl)-6-methyl-N-piperidin-1-yl- 1,4-dihydroindeno[1,2-c]pyrazole-3-carboxamide
摘要:
New analogues (2a-p) of the previously reported CB2 ligands 6-methyl- and 6-chloro-1-(2',4'-dichlorophenyl)-N-piperidin-1-yl-1,4-dihydroindeno[1,2-c]pyrazole-3-carboxamides (1a,b) have been synthesized and evaluated for cannabinoid receptor affinity. One example, 1-(2',4'-dichlorophenyl)-6-methyl-N-cyclohexyilamine-1,4-dihydroindeno[1,2-c]pyrazole-3-carboxamide (2a) was shown to have single digit nanomolar affinity for cannabinoid CB2 receptors. Furthermore, compounds 2a and 2b, as well as lead structures 1a, b, were also shown to be agonist in an in vitro model based on human promyelocytic leukemia HL-60 cells.
The invention provides a therapeutic drug for ischemic stroke. The therapeutic drug has the formula (I)
wherein each symbol is as defined herein, or a pharmacologically acceptable salt thereof, or a solvate thereof, as an active ingredient.
Synthesis of the tricyclic indole alkaloids, dilemmaones A and B
作者:Katharine E. Lambson、Christopher A. Dacko、Jeffrey M. McNeill、Novruz G. Akhmedov、Björn C.G. Söderberg
DOI:10.1016/j.tet.2019.130714
日期:2019.12
Dilemmaones A-C are naturally occurring tricyclic indole alkaloids possessing a unique hydroxymethylene or methoxymethylene substituent at the C2 position of the indole core and a C6–C7 fused cyclopentanone. Dilemmaone B has been prepared in 5 steps from 5-methylindan-1-one, and dilemmaone A has been prepared in 3 steps from a common precursor, 6-bromo-5-methyl-7-nitroindan-1-one. In both syntheses
The invention provides a homocysteine synthase inhibitor useful for the prophylaxis or treatment of diseases involving homocysteine synthase. The homocysteine synthase inhibitor is a compound of the formula (I)
wherein each symbol is as defined herein, or a pharmacologically acceptable salt thereof, or a solvate thereof.