1-Oxo-5H-pyrimido[2,1-c][1,4]benzthiazine-2-carboxylic acid este

1-Oxo-6-substituted pyrimido [1,2-a]quinoline-2-carboxylic acids

1-Oxygenated steroids

1-Phenyl isoquinoline-5-acetic acid compounds and analgesic comp

1-Phenyl-1,8-naphthridin-2(1H)-ones

1-Phenyl-2,3-butadien-1-ols and method of use

1-Phenyl-4-carbamoyl piperazine compounds, process for preparati

1-Phenyl-4-morpholino-1-buten-3-01 derivatives, compositions and

1-Phenylindazole-3-one compounds, process and intermediates for

1-Phthalazone derivatives, and use thereof

1-Piperazino-6-phenyl-4H-s-triazolo[3,4-c]thieno[2,3-e]1,4-diaze

1-Piperidinophthalazines as cardiac stimulants

1-Polyhaloalkyl-2(1H)-quinazolinone derivatives

1-Substituted hydroxyiminomethyl-pyridinium salts, with an activ

1-Substituted phenyl-4(1H)-pyridinone hydrazones and composition

1-Substituted phenyl-4-alkyl hydantoin piperazine compounds as a

1-Substituted tricyclic quinazolinones having biological activit

1-Substituted tricyclic quinazolinones useful as tranquilizers

1-Substituted-1,2-dihydrothieno[2,3-d]-pyrimidin-2-one derivativ

1-Substituted-2-(2-pyridinyl)ethanone N-oxides