4-O-(2,3,5-Trideoxy-5-amino-.alpha.-D-pentofuranosy l)-6-O-amino

4a-Substituted avermectin compounds

5'-Deoxy-5'-(isobutylthio)-3-deazaadenosine, method of making sa

5,2',3',4',4",6"-Hexadeoxykanamycin and its 1-N-acylated derivat

5-Deoxy-4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitols, methods f

5-Deoxyfortimicin A, 2,5-dideoxyfortimicin A and the correspondi

5-Epi-4,6-di-O-(aminoglycosyl)-2-deoxystreptamines, methods for

5-Epi-amino and 5-epi-azido-4,6-di-O-(aminoglycosyl)-2,5-dideoxy

5-Fluoro-(.beta.-uridine or 2'-deoxy-.beta.-uridine) derivatives

5-Halopyrimid-2-ones

5-Iminodoxorubicin

5-Iodo-5'-amino-2',5'-dideoxycytidine and the pharmaceutically a

5-Substituted 1-(2'-Deoxy-2'-substituted-.beta.-D-arabinofuranos

6"-Deoxydibekacin, 4",6"-dideoxydibekacin and 1-N-aminoacyl deri

6'-(1-Adamanta necarboxylate)-6-O-.alpha.-D-galactopyranosyl-.al

6'-N-alkyl-4,6-di-O-(aminoglycosyl)-1,3-diaminocyclitols, method

6'N-Alkyl- and 6',6'-di-N-alkyl derivatives of fortimicins A and

7-.beta.-D-Arabinofuranosyl-7H-pyrrolo[2,3-d]pyrimidine compound

7-Methyl-8-methylamino-10-(1'-D-ribityl)isoalloxazine

7-O-(2,6-Dideoxy-.alpha.-L-lyxo-hexopyranosyl)-daunomycinone, de