A novel tetracyclic compound represented by general formula (I) or a pharmacologically acceptable salt thereof. It has a potent immunosuppressive activity and is useful as an immunosuppressant and a remedy for autoimmune diseases.
一种由通式(I)代表的新型四环化合物或其药理学上可接受的盐。 它具有强效的免疫抑制活性,可用作
免疫抑制剂和自身免疫性疾病的治疗药物。