3362-42-3Relevant academic research and scientific papers
Synthesis and affinity for serotonin and dopamine transporters of some benzophenone oxime ether derivatives
Lapucci, Annalina,Nencetti, Susanna,Demontis, Gian Carlo
, p. 977 - 981 (2003)
In a previous study, we reported the synthesis of several 3-(methylenaminoxymethyl)-substituted piperidine derivatives and their ability to interfere with the transmission mediated by biogenic amines. The present study describes the preparation of some ne
ANTIFUNGAL AGENTS
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Page/Page column 73, (2008/06/13)
Compounds of formula (I), and pharmaceutically acceptable salts thereof, may be used in therapy, for example as antifungal agents: (I) wherein: Rl, R2, R3, R4, R5, R6, R7, X and X1 are as defined herein. Certain compounds of formula (I) are also provided. Compounds of formula (T), and agriculturally acceptable salts thereof, may also be used as agricultural fungicides.
17β-O-aminoalkyloximes of 5β-androstane-3β, 14β-diol with digitalis- like activity: Synthesis, cardiotonic activity, structure-activity relationships, and molecular modeling of the Na+,K+-ATPase receptor
Cerri, Alberto,Almirante, Nicoletta,Barassi, Paolo,Benicchio, Alessandra,Fedrizzi, Giorgio,Ferrari, Patrizia,Micheletti, Rosella,Quadri, Luisa,Ragg, Enzio,Rossi, Roberto,Santagostino, Marco,Schiavone, Antonio,Serra, Fulvio,Zappavigna, Maria Pia,Melloni, Piero
, p. 2332 - 2349 (2007/10/03)
A series of digitalis-like compounds with a 17-aminoalkoxyiminoalkyl or -alkenyl substituent was synthesized and evaluated for inhibition of Na+,K+-ATPase and for inotropic activity. The highest inhibition was found with compounds having the substituent in configuration 17β and the amino group at a distance of 6 or 7 bonds from C(17) of the digitoxigenin skeleton. The presence of the oxime function strengthens the interaction with the receptor, more if α,β-unsaturated, thus mimicking the electronic situation of the unsaturated lactone in natural digitalis compounds. The most active compounds showed Na+,K+-ATPase inhibitory potencies (IC50) 17-25 times higher than the standards digitoxigenin and digoxin and 3-11 times higher inotropic potencies (EC50) in isolated guinea pig left atria. These features are supported by a molecular model suggesting the possible interactions of the groups described above with particular amino acid residues in the H1-H2 domains of Na+,K+-ATPase. Some interactions are the classical ones already described in the literature; a new, very strong interaction of the basic group with the Cys138 was found and adds new possibilities to design compounds interacting with this region of the receptor. The most interesting compounds were also studied in vivo in the anesthetized guinea pig for evaluating their inotropic effect versus the lethal dose. Compounds 9 and 12 showed a slightly higher safety ratio than digoxin and deserve further evaluation.
