Syntheses and Biological Activities of 1,4-Disubstituted Piperidines
作者:Krishna A. Gupta、Anil K. Saxena、Padam C. Jain、Nitya Anand
DOI:10.1002/ardp.19843171206
日期:——
The 1,4‐substituted piperidines 16–22 have been synthesized from the 1‐substituted 4‐piperidones 5 and 6. The antiamoebic, antileishmanial and anticancer activities of these compounds are described.
Substituted-4-piperidino-quinazolines of the formula:
are claimed as phosphodiesterase inhibitors and cardiac stimulants, useful in the treatment of heart failure, in which X is an alkylene group of the formula -CHR.CH2-, where R is H, CH3 or C2H5, and Y is an isothiazolidine-1,1-dioxide, tetrahydrothiazine-1,1-dioxide, 1,2,5-thiadiazolidine-1,1-dioxide, 1,2,6-thiadiazine-1,1-dioxide or tetrahydrothiadiazine-1.1-dioxide group linked to X by a ring nitrogen atom and optionally alkyl-substituted, and in which either the piperidine ring is further substituted with a hydroxy group in the 3- or 4- position orthe carbon atom of X attached to the piperidine ring is further substituted with a hydroxy group. If the piperidine ring is substituted with a hydroxy group in the 3-position then it may also be substituted in the same position with an alkyl group.