88040-23-7 AIDS-007821 AIDS007821 Cefepime, BMY-2 [6R-[6.alpha.,7.beta.(Z)]]-1-[[7-[[(2-Amino-4- thiazolyl)(methoxyimino)acetyl]amino]-2-carboxy-8-oxo-5-thia-1- azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-1-methylpyrrolidinium, hydroxide, inner salt