Synonyms: Antibiotic42D005b; Pyrroindomycin B;14a,17-Methenobenzo[b]naphth[2,1-h]azacyclododecine-12-carboxylicacid,4-[[O-4-amino-3-O-[(5-chloro-1,8-dihydropyrrolo[2,3-b]indol-2-yl)carbonyl]-2,4,6-trideoxy-b-L-lyxo-hexopyranosyl-(1®4)-O-2,6-dideoxy-3-C-methyl-b-L-ribo-hexopyranosyl-(1®4)-2,3,6-trideoxy-b-D-threo-hexopyranosyl]oxy]-9-ethyl-1,2,3,4,4a,6a,7,8,9,10,10a,13,14,15,16,18,18a,18b-octadecahydro-8,19-dihydroxy-10a,13,18a-trimethyl-16,18-dioxo-(9CI)