4',5'-dihydro-7.alpha.-alkoxycarbonylspiro...

4',5'-dihydrospiro (estr/androst-4-ene-17,2'...

4'-alkylalkylenedioxy-5-benzylpyrimidine, process of making...

4'-c-ethynyl purine nucleoside compounds

4'-c-ethynyl pyrimidine nucleoside compounds

4'-c-substituted-2-haloadenosine derivative

4'-demethyl-4-epipodophyllotoxin derivatives

4'-demethylepipodophyllotoxin glycosides

4'-deoxyvincristine and related compounds

4'-deoxyvincristine and related compounds

4'-deschlororebeccamycin and process for its preparation

4'-deshydroxyepipodophyllotoxin glucosides: synthesis and use

4'-epi-4'-amino anthracyclines

4'-flavonecarboxylic acids and pharmaceutically acceptable...

4'-halo-substituted sucrose derivatives

4'-hydroxy (or acyloxy)-(steroid-2,5'-m-dioxan)-3-one,...

4'-iododerivatives of anthracycline glycosides

4'-o-substituted isoindoline derivatives and compositions...

4'-substituted-4',5'-dihydropsoralens and therapeutical uses...

4'-substituted-4,5',8-trialkylpsoralens