The present invention relates to compounds of formula (I)
and pharmaceutically acceptable salts and solvates thereof, wherein the substituents are as defined herein, compositions containing such compounds and the uses of such compounds for the treatment of various diseases and conditions such as asthma.
Some reactions of 3-cyano(diethylaminocarbonyl, methoxycarbonyl) pyridines with organolithium reagents. Synthesis of stabilized 1,2-, 1,4-, and 1,6-dihydropyridines
作者:M. Gamal El Din、Edward E. Knaus、Choo-Seng Giam
DOI:10.1139/v82-251
日期:1982.7.15
The reaction of 3-cyano 5a, 3-diethylaminocarbonyl 5b, and 3-methoxycarbonylpyridine 5c with alkyllithiums 6 has been investigated as a method of preparing stable dihydropyridines. Reaction of 5a with 6 affords a mixture of 1,2- and 1,6-dihydropyridines 10 and 11, whereas reaction of 5b and 5c with 6 yields a mixture of 1,4- and 1,6-dihydropyridines 11 and 12. The cyano and diethylaminocarbonyl substituents