Disclosed herein are new antiviral compounds, together with pharmaceutical compositions that include one or more antiviral compounds, and methods of synthesizing the same. Also disclosed herein are methods of ameliorating and/or treating a paramyxovirus viral infection with one or more small molecule compounds. Examples of paramyxovirus infection include an infection caused by human respiratory syncytial virus (RSV).
A General and Highly Selective Chelate-Controlled Intermolecular Oxidative Heck Reaction
作者:Jared H. Delcamp、Alexandria P. Brucks、M. Christina White
DOI:10.1021/ja804120r
日期:2008.8.27
chelate-controlled intermolecular oxidativeHeck reaction is reported that proceeds with a wide range of nonresonance stabilized alpha-olefin substrates and organoboron reagents to afford internal olefin products in good yields and outstanding regio- and E: Z stereoselectivities. Pd-H isomerization, common in many Heck reactions, is not observed under these mild, oxidative conditions. This is evidenced
Disclosed herein are new antiviral compounds, together with pharmaceutical compositions that include one or more antiviral compounds, and methods of synthesizing the same. Also disclosed herein are methods of ameliorating and/or treating a paramyxovirus viral infection with one or more small molecule compounds. Examples of paramyxovirus infection include an infection caused by human respiratory syncytial virus (RSV).
Disclosed herein are new antiviral compounds, together with pharmaceutical compositions that include one or more antiviral compounds, and methods of synthesizing the same. Also disclosed herein are methods of ameliorating and/or treating a paramyxovirus viral infection with one or more small molecule compounds. Examples of paramyxovirus infection include an infection caused by human respiratory syncytial virus (RSV).
Radical addition to carbenoids. Chain reactions of α-diazo carbonyl compounds with triorganotin hydrides, tris(trimethylsilyl)silane and allyltributylstannane
作者:Hai-Shan Dang、Brian P. Roberts
DOI:10.1039/p19960000769
日期:——
alpha-Diazo ketones RC(O)CH=N-2 react with tributyltin hydride at 60 degrees C in benzene to give the corresponding alpha-stannyl ketones RC(O)CH(2)SnBu(3), which exist in equilibrium with the stannyl enol ether tautomers R(Bu(3)SnO)C=CH2. The reactions are initiated by di-tert-butyl hyponitrite and follow a free-radical chain mechanism, Triphenyltin hydride and tris(trimethylsilyl)silane [(TMS)(3)SiH] react similarly, the latter to yield the alpha-silyl ketone RC(O)CH2Si(TMS)(3) which does not isomerise to the more stable silyl enol ether R[(TMS)(3)SiO]C=CH2 under the reaction conditions. This result indicates that TMS(3)Si reacts at the alpha-carbon atom of the alpha-diazo ketone to give R(CO)CHSiTMS(3), probably via an initial diazenyl radical adduct; triorganotin radicals are assumed to react in the same way, When the group R in the alpha-diazo ketone is but-3-enyl, the intermediate alpha-metalloalkyl radical undergoes 5-exo-cyclisation. Aliyltributylstannane reacts with a-diazo ketones and with ethyl alpha-diazoacetate in refluxing benzene, in the presence of 2,2'-azo(2-methylpropionitrile) as initiator, to give butenyl ketones RC(O)CH2CH2CH=CH2 and ethyl pent-4-enoate, respectively, after a hydrolytic work-up.