Studies on Quinazolinones as Dual Inhibitors of Pgp and MRP1 in Multidrug Resistance
摘要:
The syntheses and SAR studies of various quinazolinone compounds are described for the dual inhibition of Pgp and MRP1 in multidrug resistance. (C) 2002 Elsevier Science Ltd. All rights reserved.
The regiospecific C-2–Harylation of N-3-substituted quinazolin-4(3H)-ones with a wide range of aryl or (hetero)arylhalides under microwave irradiation was studied. A ligand-dependent palladium/copper bicatalytic system was developed and allowed direct cross-coupling with a variety of (hetero)arylhalides. This useful and scalable procedure promotes the construction of C(sp2)–C(sp2) bonds from arenes
One-pot, multicomponent synthesis of 2,3-disubstituted quinazolin-ones with potent and selective activity against Toxoplasma gondii
作者:Carla E. Brown、Tiffany Kong、Claudia Bordón、Robert Yolken、Lorraine Jones-Brando、James McNulty
DOI:10.1016/j.bmcl.2018.03.036
日期:2018.5
The discovery of two quinazolinones with selective, single-digit micromolar activity (IC50 = 6-7 mu M) against the tachyzoites of the apicomplexan parasite Toxoplasma gondii is reported. These potent and selective third generation derivatives contain a benzyloxybenzyl substituent at C2 and a bulky aliphatic moiety at N3. Here we show that these quinazolinones inhibit T. gondii tachyzoite replication in an established infection, but do not significantly affect host cell invasion by the tachyzoites. (C) 2018 Elsevier Ltd. All rights reserved.