Lucensomycin; Antibiotic 1163 F.I.; Etruscomicina; Etruscomycin; FI 1163; NSC 143257; Stereoisomer of 22-((3-amino-3,6-dideoxy-beta-D-mannopyranosyl)oxy)-12-butyl-1,3,26-trihydroxy-10-oxo-6,11,28-trioxatricyclo(33.3.1.05,7)octacosa-8,14,16,18,20-pentaene-25-carboxylic acid; 6,11,28-Trioxatricyclo(22.3.1.05,7)octacowq-8,14,16,18,20-pentaene-25-carboxylic acid, 22-((3-amino-3,6-dideoxy-beta-D-mannopyranosyl)oxy)-12-butyl-1,3,26-trihydroxy-10-oxo-; Antibiotic obtained from cultures of Streptomyces lucensis, or the same substance produced by any other means; (8E)-22-[(3-amino-3,6-dideoxy-beta-D-glycero-hexopyranosyl)oxy]-12-butyl-1,3,26-trihydroxy-10-oxo-6,11,28-trioxatricyclo[22.3.1.0~5,7~]octacosa-8,14,16,18,20-pentaene-25-carboxylic acid