Sladowska H, Sieklucka-Dziuba M, Rajtar G, Sadowski M, Kleinrok Z
Department of Chemistry of Drugs, Wrocław Medical University, Poland.
Farmaco. 1999 Nov-Dec;54(11-12):773-9. doi: 10.1016/s0014-827x(99)00101-9.
Synthesis of amides of 7-methyl-3-phenyl-2,4-dioxo-1,2,3,4- tetrahydropyrido[2,3-d]pyrimidine-5-carboxylic acid (6-10) and their 1-[2-hydroxy-3(4-phenyl-1-piperazinyl)propyl] derivatives (11-15) are described. Some of them displayed strong analgesic activity.