1-Azabicyclo(3.2.0)hept-2-ene-2-carboxylic acid, 3-((2-((3-((2,4-dihydroxy-3,3-dimethyl-1-oxobutyl)amino)-1-oxopropyl)amino)ethyl)thio)-6-(1-hydroxyethyl)-7-oxo- 82510-13-2 Antibiotic OA 6129B(sub 1) OA 6129B(1) OA-6129B1