7β-[[2-[(3,4,5,6-Tetrahydro-5-furfuryl-6-thioxo-2H-1,3,5-thiadiazin)-3-yl]-2-phenylacetyl]amino]-3-methylcepham-3-ene-4-carboxylic acid | 7β-[[2-[(3,4,5,6-Tetrahydro-5-furfuryl-6-thioxo-2H-1,3,5-thiadiazin)-3-yl]-2-phenylacetyl]amino]-3-methylcepham-3-ene-4-carboxylic acid | |