4-substituted-3-substituted-amino-cyclobut-3-ene-1,2-diones...

4-substituted-4-piperidine carboxamide derivatives

4-substituted-picolinic acid amide derivatives useful as...

4-tert.-butyl imidazole derivative and use

4-Tetrahydropyridylpyrimidine derivatives

4-thio coumarins

4-Thioquinazoline derivatives as antiulcer agents

4-[(2-benzo thiazolyl)methylamino]-alpha-[(3,4-difluorophenoxy)m

4-[(2-benzothiazolyl)methyla mino]-.alpha.-[(3,4-difluorophenoxy

4-[(bicycle heterocyclyl)-methyl and -hetero]-piperidines

4-[(diaryl)hydromethyl]-1-piperidinealkanols and esters and carb

4-[(substituted) alkylcarbonyl]-4,5-dihydro- and -4,5,6,7-tetrah

4-[2-(Di- or trisubstitutedphenoxy)ethyl amino]thienodipyrimidin

4-[2-Pyridinylthio(oxy or amino)methyl]-1H-imidazoles and deriva

4-[3,5-bis-(2-hydroxy-phenyl)-[1,2,4]triazol-1-yl]-benzoic...

4-[4'-piperodinyl or 3'-pirrolidinyl] substituted imidazoles as

4-[diaryl)hydroxymethyl]-1-piperidinealkylcarboxylic acids, salt

4.5-diaryloxazole compounds with prostaglandin I2 (PGI2)...

4.beta.-amino podophyllotoxin analog compounds and methods

42-Epi-rapamycin and pharmaceutical compositions thereof