preferred_name: 3-aminopropyl 2-acetamido-2,3-dideoxy-3-{[(3R)-3-hydroxybutanoyl]amino}-beta-D-glucopyranuronosyl-(1->4)-3-O-acetyl-2,6-dideoxy-2-(ethanimidoylamino)-alpha-L-galactopyranosyl-(1->3)-2-acetamido-2,6-dideoxy-alpha-D-glucopyranoside