Hydantoin bioisosteres. In vivo active spiro hydroxy acetic acid aldose reductase inhibitors
作者:Christopher A. Lipinski、Charles E. Aldinger、Thomas A. Beyer、Jon Bordner、Douglas F. Burdi、Donald L. Bussolotti、Philip B. Inskeep、Todd W. Siegel
DOI:10.1021/jm00090a004
日期:1992.6
The hypothesis that clinical side effects of the aldosereductaseinhibitor (ARI) sorbinil were related to its hydantoin ring led to a bioisosteric analysis and replacement of the hydantoin by a spiro hydroxy acetic acid moiety as in 40. These hydroxy acids, compared to hydantoins, showed a similar potency increase on chroman 2-methyl substitution, a similar orthogonal relationship of acidic to aromatic
Synthesis of chromanones: a novel palladium-catalyzed Wacker-type oxidative cyclization involving 1,5-hydride alkyl to palladium migration
作者:Zuhui Zhang、Chongfeng Pan、Zhiyong Wang
DOI:10.1039/b711613f
日期:——
A series of 2-methylchromanone derivatives have been prepared by using a novelpalladium-catalyzed Wacker-type oxidative cyclization, in which a 1,5-hydride alkyl to palladium migration and a direct chirality transfer were involved.