| abstract |
The invention relates to N-alkyl-N-glycosyl derivatives of alkyl esters of antifungal antibiotics of polyene macrolide group of general formula (1a), wherein M represents polyene macrolide antibiotics residues, R represents a variable part of sugar residue, and each of R?1 and R2¿ represents a C¿1-4? alkyl group; their salts of general formula (2a), wherein R, R?1, R2¿ and M are as herein defined and A represents an anion of organic or inorganic acid. Compounds of formula (1b) and (2b) wherein the N-alkyl and alkyl ester groups are represented by methyl are of particular interest. The invention relates also to processes for preparation of the compounds, to compositions containing these compounds and to their use in therapy and the treatment of external and internal fungal infections in humans and animals. |