Synthesis and structure-activity relationships of naftifine-related allylamine antimycotics
摘要:
Naftifine (1) is the first representative of the new antifungal allylamine derivatives. Its biological activity is strictly bound to specific structural requirements that are unrelated to those of known antifungals. A tertiary allylamine function seems to be a prerequisite for activity against fungi. By systematic variation of the individual structural elements in 1, detailed structure-activity relationships are defined in which the phenyl ring is the structural feature permitting the widest variations. Versatile synthetic routes to allylamine derivatives and comparative biological data are presented.
Solvent and Substituent Effects in the Periselectivity of the Staudinger Reaction between Ketenes and α,β-Unsaturated Imines. A Theoretical and Experimental Study
作者:Begoña Lecea、Iosune Arrastia、Ana Arrieta、Guillermo Roa、Xabier Lopez、M. Isabel Arriortua、Jesus M. Ugalde、Fernando P. Cossío
DOI:10.1021/jo951867w
日期:1996.1.1
The outcome of the cycloaddition between activated ketenes and alpha,beta-unsaturated imines has been investigated both experimentally and theoretically. Our results indicate that activated monosubstituted ketenes yield exclusively [2 + 2] cycloadducts. Disubstituted activated ketenes yield [2 + 2] and/or [4 + 2] cycloadducts. In one case, an unexpected piperidin-2-one has been obtained, although its
Theoretical and experimental studies on the periselectivity of the cycloaddition reaction between activated ketenes and conjugated imines
作者:Iosune Arrastia、Ana Arrieta、Jesus M. Ugalde、Fernando P. Cossío、Begoña Lecea
DOI:10.1016/0040-4039(94)80128-2
日期:1994.10
Theoretical and experimental studies on the cycloaddition between methoxyketene and a model conjugated imine predict the preferential formation of the [2+2] cycloadduct. A configuration interaction level of theory is required to reproduce correctly the observed periselectivity.