COMPOSE OU SON SEL, AGENT ANTI-INFLAMMATOIRE, AGENT ANTICANCEREUX POUR LE CANCER DU POUMON, PROCEDE DE PRODUCTION DU COMPOSE OU SON SEL, PROCEDE DE TRAITEMENT D'UNE MALADIE INFLAMMATOIRE, ET PROCEDE DE TRAITEMENT DU CANCER DU POUMON
Provided is a novel compound that has exceptional safety and can be used as an anti-inflammatory agent, an anticancer agent for lung cancer, etc. This compound or salt thereof is characterized by being a compound represented by formula (A) or formula (B) or a salt thereof. [Chemical formula A] [Chemical formula B] In formula (A) and formula (B), X1 is a hexose or a hydroxyl group, and X2 is a phosphoric acid group or a hydroxyl group.