(3'S)-3'-Demethyl-12-deoxy-10-hydroxyerythromycin

(3'S)-3'-Demethyl-12-deoxy-8-hydroxyerythromycin

(3'S)-3'-Demethyl-12-deoxyerythromycin

(3'S)-3'-Demethyl-8,19-epoxy-12-deoxyerythromycin

(4'S)-12-Deoxy-10,11-dihydro-4'-hydroxypicromycin

(3'S)-3',3'aβ,9',9'aα-Tetrahydro-3'β,6',7',9'α-tetrahydroxyspiro[2,5-cyclohexadiene-1,4'(2'H)-naphtho[2,3-b]furan]-4-one

(3R,4S,5S,6R,7R,9R,11R,12S,13R,14R)-4-[(2R,4R,5R,6S)-4,5-dihydroxy-4,6-dimethyloxan-2-yl]oxy-6-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-14-ethyl-7,12-dihydroxy-3,5,7,9,11,13-hexamethyl-oxacyclotetradecane-2,10-dione

N-[3-acetyl-10-bromo-6-(2-methylpropyl)-7-oxospiro[1,3,4-thiadiazoline-2,3'-in doline]-5-yl]acetamide

N-[4-acetyl-1'-[(4-ethoxyphenyl)methyl]-2'-oxospiro[1,3,4-thiadiazole-5,3'-indole]-2-yl]acetamide

N-{3'-acetyl-1-[(2-ethoxyphenyl)methyl]-2-oxo-1,2-dihydro-3'H-spiro[indole-3,2'-[1,3,4]thiadiazole]-5'-yl}acetamide

N-(3-Acetyl-6-{[2-(methylethoxy)phenyl]methyl}-7-oxospiro[1,3,4-thiadiazoline-2,3'-indoline]-5-yl)acetamide

N-[3'-acetyl-1-(3-methylbutyl)-2-oxo-1,2-dihydro-3'H-spiro[indole-3,2'-[1,3,4]thiadiazole]-5'-yl]acetamide

N-(3-acetyl-10-methyl-6-{[2-(methylethoxy)phenyl]methyl}-7-oxospiro[1,3,4-thia diazoline-2,3'-indoline]-5-yl)acetamide

N-(3-acetyl-10-methyl-6-{[4-(methylethoxy)phenyl]methyl}-7-oxospiro[1,3,4-thia diazoline-2,3'-indoline]-5-yl)acetamide

N-{3'-acetyl-1-[(2-chlorophenyl)methyl]-5-methyl-2-oxo-1,2-dihydro-3'H-spiro[indole-3,2'-[1,3,4]thiadiazole]-5'-yl}acetamide

N-(3'-acetyl-1-allyl-5-methyl-2-oxo-3'H-spiro[indoline-3,2'-[1,3,4]thiadiazol]-5'-yl)acetamide

N-[4-acetyl-5'-methyl-1'-[2-(2-methylphenoxy)ethyl]-2'-oxospiro[1,3,4-thiadiazole-5,3'-indole]-2-yl]acetamide