The present invention opens to the public a method to prepare a benzopyran compound and its use for treating pulmonary fibrosis. A benzopyran compound has a structure (I):
in which: R1 represents hydrogen, C1-C4 alkyl, or various remaining amino acid moieties after removal of an amino group; R2 represents hydrogen, C1-C4 alkyl, or various remaining amino acid moieties after removal of an amino group; R3 represents hydrogen, or C1-C4 alkyl; and n is any integer of 1-4, wherein the benzopyran compound is derived from a broth of Streptomyces xiamenensis CGMCC No. 5675 by extraction, separation and purification. The derivatives of xiamenmycin made from the present invention have a higher bioactivity to suppress the proliferation of normal human lung fibroblast, and medicinal products containing the same are useful in the treatment of pulmonary fibrosis.
本发明向公众公开了一种苯并
吡喃化合物的制备方法及其用于治疗肺纤维化的用途。苯并
吡喃化合物具有结构(I):
其中R1代表氢、C1-C4烷基或去掉
氨基后剩余的各种
氨基酸分子;R2代表氢、C1-C4烷基或去掉
氨基后剩余的各种
氨基酸分子;R3代表氢或C1-C4烷基;n为1-4的任意整数,其中苯并
吡喃化合物是从厦门链霉菌CGMCC No.5675的肉汤中通过提取、分离和纯化得到的。本发明制得的厦门霉素衍
生物具有较高的
生物活性,可抑制正常人肺成纤维细胞的增殖,含有本发明衍
生物的医药产品可用于治疗肺纤维化。