7β-[2-[(Tetrahydro-4-propyl-2-thioxo-2H-1,3,5-thiadiazin)-5-yl]-2-(4-hydroxyphenyl)acetylamino]-3-methylcepham-3-ene-4-carboxylic acid | 7β-[2-[(Tetrahydro-4-propyl-2-thioxo-2H-1,3,5-thiadiazin)-5-yl]-2-(4-hydroxyphenyl)acetylamino]-3-methylcepham-3-ene-4-carboxylic acid | |