Imidazo[1,2-a]pyrimidines as Functionally Selective and Orally Bioavailable GABAAα2/α3 Binding Site Agonists for the Treatment of Anxiety Disorders
摘要:
A series of high-affinity GABA(A) agonists with good oral bioavailability in rat and dog and functional selectivity for or the GABA(A)alpha 2 and -alpha 3 subtypes is reported. The 7-trifluoroinethylimidazopyrimidine 14g and the 7-propan-2-olimidazopyrimidine 14k are anxiolytic in both conditioned and unconditioned animal models of anxiety with minimal sedation observed at full BZ binding site occupancy.
Imidazo[1,2-a]pyrimidines as Functionally Selective and Orally Bioavailable GABAAα2/α3 Binding Site Agonists for the Treatment of Anxiety Disorders
摘要:
A series of high-affinity GABA(A) agonists with good oral bioavailability in rat and dog and functional selectivity for or the GABA(A)alpha 2 and -alpha 3 subtypes is reported. The 7-trifluoroinethylimidazopyrimidine 14g and the 7-propan-2-olimidazopyrimidine 14k are anxiolytic in both conditioned and unconditioned animal models of anxiety with minimal sedation observed at full BZ binding site occupancy.
Metal-Free Generation of γ-Cyanoalkyl Radicals by N-Heterocyclic Carbene Catalysis: Assembly of 6-Cyanoalkyl Phenanthridines
作者:Qianrong Li、Cong-Ying Zhou、Chengming Wang
DOI:10.1021/acs.orglett.2c03808
日期:2022.12.23
number of γ-cyanoalkyl radicals were generated by sustainable N-heterocyclic carbene catalysis in tin-, transition-meal-, and light-free conditions, followed by insertion into biaryl isonitriles, thus leading to the rapid assembly of a variety of diversely functionalized 6-cyanoalkyl phenanthridines. A preliminary mechanism study revealed that a single-electron transfer radical process was possibly involved