Showing structure for 7-({2-[(2-amino-1-hydroxy-3-methylpentylidene)aminosulfonyl]-1-hydroxyethylidene}amino)-6-hydroxy-4-(c-hydroxycarbonimidoyl)-2-methyl-1h,4ah,5h,6h,7ah-cyclopenta[c]pyridine-7-carboxylic acid