Novel compound and pharmaceutical composition

The invention belongs to the field of medicinal chemistry, and particularly relates to a novel compound and a pharmaceutical composition. The structural formula of the novel compound is shown as a formula (1). The method is simple to operate, and the novel compound is obtained by separating and purifying kelimycin through a novel separation and purification method. It is surprisingly found that when a small amount of the novel compound is contained in the kelimycin composition, a synergistic effect is generated, and a better antibacterial effect is achieved. 本发明属于药物化学领域，具体地说，涉及一种新化合物及药物组合物。所述的新化合物的结构式如式(1)所示：本发明方法操作简单，通过一种新的分离纯化方法从可利霉素中分离纯化得到了一种新化合物。并惊喜地发现当可利霉素组合物中含有少量的新化合物时，产生了协同作用，抗菌作用达到了更好的效果。