Abstract: Novel compounds of formula I, ##STR1## in which R.sub.1 is hydrogen, alkyl, phenylalkyl, carbalkoxyalkyl, acyl, carboxyalkyl, alkoxyalkyl, hydroxyalkyl, cyanoalkyl, or carbamoylalkyl,R.sub.2 is hydrogen, pivaloyloxymethyl or the residue of an easily splittable ester grouping,R.sub.3 is a pyrazolyl radical, unsubstituted or mono- or di-substituted by alkyl, phenyl, alkoxy, alkylthio, carboxy, carboxyalkyl, carbamoyl, carbamoylalkyl, alkylsulphonyl, azido, acylamino, hydrazino, acylhydrazino alkylidenehydrazino, phenylidenehydrazino, in which the phenyl nucleus is unsubstituted or substituted by NH.sub.2, lower alkoxy or lower alkyl, furylidenehydrazino, carbalkoxy or a group R.sub.5 R.sub.6 N--, in which R.sub.5 and R.sub.6 are the same or different and are hydrogen or alkyl, provided that the nitrogen atoms and the 4-position of the pyrazole nucleus are either unsubstituted or substituted by alkyl, phenyl, or carbalkoxy, andR.sub.

Abstract: 7-Aryl-5H-dibenz[c,e]azepines, e.g., those of the formula ##STR1## wheren: Ar'=phenyl, furyl, thienyl, pyridyl or phenyl subst. by alkyl, OH, alkoxy, halo or CF.sub.3 ;R'=halo or CF.sub.3N-oxides or salts thereof are anxiolytic, tranquilizing and anti-convulsant agents.

Abstract: Novel 6-substituted amino-penicillanic sulfoxide silyl esters useful as intermediates for the preparation of 7-aminodesacetoxycephalosporanic acids derivatives.