preferred_name: N-acetyl-alpha-neuraminate => N-acetyl-beta-neuraminate
preferred_name_lc: n-acetyl-alpha-neuraminate => n-acetyl-beta-neuraminate
label: N-acetyl-alpha-neuraminate => N-acetyl-beta-neuraminate
label_lc: n-acetyl-alpha-neuraminate => n-acetyl-beta-neuraminate