60553-32-4Relevant articles and documents
Synthesis and in vivo and in vitro evaluation of isoarecolone and derivatives
Beach, J. Warren,Damaj, M. Imad,Jonnala, Ramamohana R.,Terry Jr., Alvin V.,Buccafusco, Jerry J.
, p. 510 - 522 (2007/10/03)
The synthesis of the N-ethyl and N-phenylethyl derivatives of isoarecolone are described. These compounds were evaluated in vitro for their ability to displace [3H](±)epibatidine and/or [3H](-) nicotine from nicotinic receptors derived from rat cerebral cortex and their ability to inhibit acetylcholinesterase. The N-ethyl derivative and isoarecolone were evaluated in vivo for their antinociceptive, hypothermia and hypomotility activity in mice. The in vivo activity of isoareeolone was found to the reversible by mecamylamine, however the N-ethyl derivative was found to be insensitive to blockade by mecamylamine.
Synthesis and cytotoxic activity of hydroxylated derivatives of olivacine in relation with their biotransformation
Maftouh,Besselievre,Monsarrat,Lesca,Meunier,Husson,Paoletti
, p. 708 - 714 (2007/10/02)
The chemical synthesis of 9-hydroxyolivacine and 7-hydroxyolivacine based on a biomimetic approach is described. These two hydroxylated derivatives have been found as main in vitro metabolites of olivacine after incubation with rat hepatic microsomes. The pretreatment of animals with benzo[a]pyrene caused a large increase in both microsomal hydroxylations, whereas the pretreatment with phenobarbital caused a weak increase, with a preservation of 9-hydroxylation/7-hydroxylation ratio >1 in both cases. The two hydroxyolivacines have been also found as principal in vivo metabolites of olivacine in rat bile as glucuronide and sulfate conjugates. The pretreatment of animals with benzo[a]pyrene reverses the 9-hydroxyolivacine/7-hydroxyolivacine ratio excretion in bile to a value that is 1H NMR spectra. Hydroxylation at position 9 increases the in vitro cytotoxicity against leukemia L1210 cells (ID50 = 0.06 μM compared to 2.03 μM for olivacine) and an opposite effect is observed for hydroxylation at position 7 (ID50 = 12.8 μM). On the other hand, hydroxylation at position 9 has no effect on the in vivo antitumor activity against L1210. This might be related to the oxidative and conjugative metabolic pathways that play an important role in antitumor activity and deactivation of olivacine and its hydroxy metabolites.