Sawadjoon Supaporn, Kittakoop Prasat, Isaka Masahiko, Kirtikara Kanyawim, Madla Siribhorn, Thebtaranonth Yodhathai
Department of Chemistry, Faculty of Science, Mahidol University, Bangkok, Thailand.
Planta Med. 2004 Nov;70(11):1085-7. doi: 10.1055/s-2004-832652.
Two known spirodihydrobenzofuran terpenes (1 and 2) were isolated from a mycelium extract of the fungus Stachybotrys nephrospora BCC 3900. Compound 1 (Mer-NF5003F or stachybotrydial) exhibited potent antiviral activity (the IC50 value of 4.32 microg/mL) comparable to the standard drug, acyclovir, while compound 2 was inactive against the HSV-1 virus. Both 1 and 2 possessed antiplasmodial activity (IC50 values of 0.85 and 0.15 microg/mL for 1 and 2, respectively), and were not toxic towards the Vero cell line. A regiospecific conversion of the dialdehyde 1 to the lactone 2 proceeded simply under acidic conditions.
从真菌链格孢菌BCC 3900的菌丝体提取物中分离出两种已知的螺二氢苯并呋喃萜类化合物(1和2)。化合物1(Mer-NF5003F或链格孢醛)表现出强效的抗病毒活性(IC50值为4.32微克/毫升),与标准药物阿昔洛韦相当,而化合物2对单纯疱疹病毒1型无活性。化合物1和2均具有抗疟活性(化合物1和2的IC50值分别为0.85和0.15微克/毫升),且对Vero细胞系无毒。在酸性条件下,二醛1可简单地区域特异性转化为内酯2。