4, 4'-bridged bis-2, 4-diaminoquinazolines
4,4,5,5, tetrasubstituted imidazolines
4,5-cyclicimidazo[1,5-A]quinoxalines
4,5-diaminopyrimidine derivatives and a method for the...
4,5-disubstituted imidazole compounds
4,6-di-(3-amino-5-nitro-1,2,4-triazole)-5-nitropyrimidine
4,6-di-2-(5-nitro-1,2,4-triazole)-5-nitropyrimidine
4,6-dichloropyrimidine and related compounds
4,6-disubstitued pyrimidines useful as kinase inhibitors
4-(2-pyridyl) piperazines having 5HT7 receptor agonist activity
4-(3-Iodopropargyloxy) pyrimidine derivatives
4-(Lower)alkyl-1-(o-nitrophenyl)piperazine-2-carboxylic acid che
4-(Pyridyl, piperazinyl and thiazolyl substituted thiazolyl)-3-h
4-Acyl-2,6-dioxo-1-phenethyl piperozines
4-Acylamino-2-(pyridinyl)pyrimidine derivatives
4-Amino (or hydrazino)-2-(pyridinyl)pyrimidines
4-amino substituted-6-aryl/heteroaryl...
4-Amino-2-substituted-5-pyrimidinecarboxamidoximes and carbothio
4-amino-5H-pyrrolo[3,2-d]pyrimidine inhibitors of nucleoside...
4-Aminomethyl-5-acyl-1,3-dihydro-2H-imidazol-2-ones