Synthesis and ribonuclease H related biochemical properties of α-anomeric 2′-deoxypyrimidine homooligomer and its phosphorothioate analog
摘要:
RNase H mediated degradation of RNA on the beta-DNA . RNA duplex was inhibited by the presence of extra 2'-deoxypyrimidine homooligomer. The effect was dependent on the nature of the nucleobase, glycoside bond configuration, and the internucleotide linkage of the extra homooligomer used. Thus, alpha-anomeric 2'-deoxycytidylate phosphorothioate exhibited the most potent inhibitory effect (> 40%) on RNase H. Copyright (C) 1996 Elsevier Science Ltd
Synthesis and ribonuclease H related biochemical properties of α-anomeric 2′-deoxypyrimidine homooligomer and its phosphorothioate analog
摘要:
RNase H mediated degradation of RNA on the beta-DNA . RNA duplex was inhibited by the presence of extra 2'-deoxypyrimidine homooligomer. The effect was dependent on the nature of the nucleobase, glycoside bond configuration, and the internucleotide linkage of the extra homooligomer used. Thus, alpha-anomeric 2'-deoxycytidylate phosphorothioate exhibited the most potent inhibitory effect (> 40%) on RNase H. Copyright (C) 1996 Elsevier Science Ltd
Reactivity and properties of bis(chlorodifluoroacetyl) peroxide generated <i>in situ</i> from chlorodifluoroacetic anhydride for chlorodifluoromethylation reactions
作者:Shintaro Kawamura、Cassandra J. Henderson、Yuma Aoki、Daisuke Sekine、Shū Kobayashi、Mikiko Sodeoka
DOI:10.1039/c8cc05905e
日期:——
We developed a practical chlorodifluoromethylation reaction mediated by diacyl peroxide generated in situ from chlorodifluoroacetic anhydride. Allylic and amino-chlorodifluoromethylations of alkenes proceeded well with the combination of this reagent, Cu(II) catalyst and a pyridine additive. Carbo- and aromatic chlorodifluoromethylations proceeded under metal-free conditions.