5-Phenyl substituted 1-methyl-2-pyridones and 4′-substituted biphenyl-4-carboxylic acids. synthesis and evaluation as inhibitors of steroid-5α-reductase type 1 and 2
作者:Franck Picard、Tobias Schulz、Rolf W. Hartmann
DOI:10.1016/s0968-0896(01)00293-0
日期:2002.2
ferrocyanate of the 1-methyl-pyridinium salt. Inhibitors II (5-18) were obtained either by two successive Friedel-Craftsacylationsfrom biphenyl (5a-10a) followed by saponification to yield the corresponding carboxylic acids (5-10) or by Suzuki cross coupling reaction to give the 4'-substituted biphenyl-4-carbaldehydes 11a-18a. The latter compounds were subjected to a Lindgren oxidation to yield compounds