Tetracycline-N,N'-dibenzylideneethylenediamine complexes for use in isolating tetracyclines

Biosynthesis of tetracycline

Tetracycline process

Tetracycline phosphate complexes

Esterification of temperature- or acid-sensitive compounds

Preparation of oxytetracycline

Complexes of tetracyclines with N,N'-dibenzylideneethylenediimine and alkaline earth ions

Fermentative production of tetracycline or chlortetracycline

alpha.-Ketols

Esterification

Chloramphenicol esters

Esters of penicillin