Solid phase synthesis of aryl ethers via the mitsunobu reaction
作者:Thomas A. Rano、Kevin T. Chapman
DOI:10.1016/0040-4039(95)00607-e
日期:1995.5
A procedure for the preparation of aryl ethers on a solid support employing the Mitsunobu reaction is described. Either polymer bound phenols or benzyl alcohols react rapidly and cleanly with TMAD/Bu(3)P and the appropriate electrophile/nucleophile to provide the aryl ether in excellent yield and purity after cleavage from the solid support.
Crystallography, quantitative structure-activity relationships, (QSAR) and molecular graphics in a comparative analysis of the inhibition of dihydrofolate reductase from chicken liver and Lactobacillus casei by 4,6-diamino-1,2-dihydro-2,2-dimethyl-1-(substituted-phenyl)-s-triazines
作者:Corwin Hansch、Bruce A. Hathaway、Zongru Guo、Cynthia Dias Selassie、Stephen W. Dietrich、Jeffrey M. Blaney、Robert Langridge、Karl W. Volz、Bernard T. Kaufman
DOI:10.1021/jm00368a006
日期:1984.2
The inhibition of dihydrofolatereductase from chicken liver and from Lactobacillus casei has been studied with 4,6-diamino-1,2-dihydro-2,2-dimethyl-1-(substituted-phenyl)-s-triazines. It was found that for the chicken enzyme, inhibitor potency for 101 triazines was correlated by the following equation: log 1/Kiapp = 0.85 sigma tau' - 1.04 log (beta X 10 sigma tau' + 1) + 0.57 sigma + 6.36. The parameter