Disubstituted 7-pyrrolidinoquinoline- and -napthylridine-3-carboxylic acids as antibacterial agents are described as well as methods for their manufacture, formulation, and use in treating bacterial infections.
Novel, orally active antibacterial agents are described and characterized as 7-[[3-(aminomethyl)-3-alkyl]-1-pyrrolidinyl]-6-fluoro-1,4-dihydro-4-oxo -3-quinoline carboxylic acids or corresponding 1,8-naphthyridine derivatives as well as methods for their manufacture.
Photoaddition reactions of azomethine ylides generated from α-aminonitriles to fullerene C60: Formation of fulleropyrrolidines and reaction efficiencies changes depending on reaction conditions
作者:Suk Hyun Lim、Dae Won Cho
DOI:10.1016/j.tetlet.2019.151208
日期:2019.10
Photoadditionreactions of C60 with both (trimethylsilyl)methyl and either benzyl or phenethyl group containing α -aminonitriles were carried out to explore how product distributions and reaction efficiencies can be influenced by reaction solvent systems. The results show that photoreactions produce both trimethylsilyl- and cyano group containing fulleropyrrolidines as a major (or exclusive) product
SET-promoted photoaddition reactions of fullerene C60 with tertiary N-trimethylsilylmethyl substituted α-aminonitriles. Approach to the synthesis of fulleropyrrolidine nitriles
作者:Suk Hyun Lim、Dae Won Cho、Jungkweon Choi、Hyunjun An、Jun Ho Shim、Patrick S. Mariano
DOI:10.1016/j.tet.2017.08.057
日期:2017.11
efficiencies of these photoadditionreactions are influenced by several factors including reaction condition (N2 or O2-purged), solvent polarity, the electronic and structural nature of α-aminonitriles and additive. The presence of trimethylsilyl group in the α-aminonitrile substrates plays a crucial role in enhancing the efficiencies of the fulleropyrrolidine forming reactions.
3-dipolar cycloaddition of chiral azomethine ylides with several dipolarophiles has been studied. Reasonable levels of such diastereoselectivity have been found when optically active α-cyanoaminosilanes are employed as azomethine ylide equivalents. These compounds can be prepared in multigram quantities by treating the appropriate chiral amine with chlorotrimethylsilane followed by reaction of the resulting