Abstract: The invention relates to substituted 9a-N-{N?-[4-(sulfonyl)phenyl]carbamoyl} derivatives of 9-deoxo-9-dihydro-9a-aza-9a-homoerithromycin A and 5-0-desosaminyl-9-deoxo-9-di-hydro-9a-aza-9a-homoerithronolide A, novel semisynthetic macrolide antibiotics of the azalide series general formula (1), wherein R represents H or cladinosyl moiety and R1 represents chloro, amino, phenylamino, 2-pyridylamino, 3,4-dimethyl-4-isoxalylamino and 5-methyl-3-isoxazolylamino group, and pharmaceutically acceptable addition salts thereof with inorganic or organic acids.

Abstract: The invention relates to N?-substituted 9a-N-(N?-carbamoyl-?-aminopropyl), 9a-N-(N?-thiocarbamoyl-?-aminopropyl), 9a-N-[N?-?-cyanoethyl)-N?-carbamoyl-?-aminopropyl] and 9a-N-[N?-?-cyanoethyl)-N?-thiocarbamoyl-?-am inopropyl] derivatives of 9-deoxo-9-dihydro-9a-aza-9a-homoerithromycin A and 5-O-desosaminyl-9-deoxo-9-dihydro-9a-aza-9a-homoerithronolide A, novel semi-synthetic macrolide antibiotics of the azalide series, of the general formula 1, wherein R represents H or cladinosyl moiety, R1 represents H or ?-cyanoethyl moiety, R2 represents isopropyl, 1-naphtyl, 2-naphtyl, benzyl, 2-(trifluoromethyl)phenyl, 3-phenylpropyl, ?-phenylethyl, ethoxycarbonyl-methyl, 1-(1-naphtyl)ethyl, 3,4,5-trimethoxyphenyl and 2,4-dichlorophenyl group, and X represents O and S, and their acceptable addition salts thereof with inorganic or organic acids, to the process for preparation of their pharmaceutical compositions as well as the use their compositions in the treatment of bacterial infections.

Abstract: The invention relates to substituted 9a-N—[N?-(benzenesulfonyl)carbamoyl-?-aminopropyl] and 9a-N—[N?-(?-cyanoethyl)-N?-(benzenesulfonyl)carbamoyl-?-aminopropyl] derivatives of 9-deoxo-9-dihydro-9a-aza-9a-homoerithromycin A and 5-( )-desosaminyl-9-deoxo-9-dihydro-9a-aza-9a-homoerithronolide A, novel semisynthetic macrolide antibiotics of the azalide series, of the formula (I) wherein R represents H or cladinosyl moiety, R1 represents H or ?-cyanoethyl group an R2 represents II or fluoro, chloro and methyl group, and pharmaceutically acceptable salts thereof with inorganic or organic acids, to the process for the preparation of pharmaceutical compositions as well as to the use their compositions for sterilization rooms and medical instruments as well as for protection of wall and wooden coatings.

Abstract: The invention relates to N?-substituted 9a-N-(N?-carbamoyl-?-aminopropyl), 9a-N-(N?-thiocarbamoyl-?-amino-propyl), 9a-N-[N?-((?-cyanoethyl)-N?-carbamoyl-?-aminopropyl] and 9a-N-[N?-((?-cyanoethyl)-N?-thiocarbamoyl-?-aminopropyl] derivatives of 9-deoxo-9-dihydro-9a-aza-9a-homoerithromycin A and 5-0-desosaminyl-9-deoxo-9-dihydro-9a-aza-9a-homoerithronolide A, novel semisynthetic macrolide antibiotics of the azalide series, of the general formula 1, wherein R represents H or cladinosyl moiety, R1 represents H or (?-cyanoethyl moiety, R2 represents isopropyl, 1-naphtyl, 2-naphtyl, benzyl, 2-(trifluommethyl)phenyl, 3-phenylpropyl, ?-phenylethyl, ethoxycarbonylmethyl, 1-(1-naphtyl)ethyl, 3,4,5-trimethoxyphenyl and 2,4-dichlorophenyl group, and X represents 0 and S, and their acceptable addition salts thereof with inorganic or organic acids, to the process for preparation of their pharmaceutical compositions as well as the use their compositions in the treatment of bacterial infections.

Abstract: The invention relates to substituted 9a-N-{N?-[4-(sulfonyl)phenyl]carbamoyl} derivatives of 9-deoxo-9-dihydro-9a-aza-9a-homoerithromycin A and 5-0-desosaminyl-9-deoxo-9-di-hydro-9a-aza-9a-homoerithronolide A, novel semisynthetic macrolide antibiotics of the azalide series general formula (1), wherein R represents H or cladinosyl moiety and R1 represents chloro, amino, phenylamino, 2-pyridylamino, 3,4-dimethyl-4-isoxalylamino and 5-methyl-3-isoxazolylamino group, and pharmaceutically acceptable addition salts thereof with inorganic or organic acids.