2,3-Dihydro-imidazo[1,2-b]pyridazine derivatives, their preparat

2,3-Dihydro-substituted-5-benzoyl benzofuran-2-carboxylic acids

2,3-Disubstituted-thiazolo[3,2-a]pyrimidines

2,4-Diamino 5-bromo 6-chloro pyrimidines, process for their prep

2,4-Diamino substituted pyridol(3,2-d)pyrimidine as antithrombot

2,4-Diamino-5-(4'-methylthio)benzylpyrimidenes, compounds, compo

2,4-Diamino-5-benzylpyrimidines

2,4-Diaminoquinazolines as antithrombotic agents

2,4-Diaminoquinazolines as antithrombotic agents

2,4-Dioxo-4-substituted-1-butanoic acid derivatives useful in tr

2,4-[1H,3H,5H]-(1)-Benzopyrano-[2,3-d]-pyrimidinediones and thei

2,4a-Ethanobenz[g]isoquinolin-5(1H)-ones and their use as anti-f

2,5-Benzodiazocine derivatives and salts thereof, as well as pha

2,5-Dihydro-1,2-thiazino(5,6-b)indole-3-carboxamide-1,1-dioxides

2,6-Bis(1-morpholinoalkylideneamino)anthraquinones as anti-amebi

2,6-Diamino-benzo[1,2-d:5,4-d']bisthiazoles and salts thereof

2,8-Disubstituted-10-hydroxy-5,5-dimethyl-tetrahydro-and hexahyd

2,9-Dioxatricyclo [4,3,1,0.sup.3,7 ] decane derivatives and phar

2,9-Disubstituted adenine derivatives and their use as non-adren

2-(1-Piperazinyl)-2,4,6-cycloheptatrien-1-one derivatives