N-acetyl-alpha-neuraminate => N-acetyl-2,7-anhydro-alpha-neuraminate + H2O
n-acetyl-alpha-neuraminate => n-acetyl-2,7-anhydro-alpha-neuraminate + h2o
N-acetyl-alpha-neuraminate => N-acetyl-2,7-anhydro-alpha-neuraminate + H2O
n-acetyl-alpha-neuraminate => n-acetyl-2,7-anhydro-alpha-neuraminate + h2o