A number of acetals, aminoacetals, carboxamideacetals, and aromatic esters were synthesized and evaluated for topicalrepellency on human skin against Aedes aegypti mosquitoes. The aminoacetals exhibited the highest degrees of repellency, but none of the compounds rivaled N,N‐diethyl‐m‐toluamide in terms of duration of protection. Repellency was related to volatility, and it is concluded that useful
The invention provides compounds, pharmaceutical compositions comprising such compounds and methods of using such compounds to treat or prevent diseases or disorders associated with abnormal or deregulated TRK kinase activity.
Cu-catalyzed three-component reaction of alkyne, azides (sulfonyl or phosphoryl azides), and N,N-dialkyloxyformamide dialkyl acetal via electrophilic addition of immonium ion to copper ketenimine is reported. This new protocol for the preparation of α,β-unsaturated amidine derivatives appears to offer high yield, mild conditions, and wide substrate scope. The reaction might involve the processes of
There are disclosed various substituted 4-amino-3-pyridinol compounds of the formula below, ##STR1## where R.sub.1, R.sub.2 and R.sub.3 are as defined in the specification, which are useful for alleviating various memory dysfunctions characterized by a cholinergic deficit such as Alzheimer's disease.
Aryl and heteroaryl[7-(aryl and heteroaryl)pyrazolo[1,5-a]pyrimidin-3-yl]methanones which are new compounds active as anxiolytic, anticonvulsant, sedative-hypnotic and skeletal muscle relaxant agents in mammals and the novel process of making these compounds.