.GAMMA.-Pyrones from Gonystylus keithii, as New Inhibitors of Parathyroid Hormone (PTH)-Induced Ca Release from Neonatal Mouse Calvaria.
作者:Tsutomu KANAZAWA、Yuki OHKAWA、TAKASHI KUDA、Yasushi MINOBE、Tadato TANI、Makoto NISHIZAWA
DOI:10.1248/cpb.45.1046
日期:——
New γ-pyrones, 9'-oxopodopyrone (3) and 8-methyl-9'-oxopodopyrone (4) were isolated from the leaves of Gonystylus keithii, along with known γ-pyrones, 10'-oxopodopyrone (1) and 8-methyl-10'-oxopodopyrone (2). These γ-pyrones markedly inhibited the bovine parathyroid hormone (PTH)-induced Ca release from neonatal mouse calvaria in vitro. It is the first time that γ-pyrones showed inhibitory effects on bone resorption, and these compounds may be seed compounds of new drugs for osteoporosis.
从Gonystylus keithii的叶子中分离出新的γ-吡喃酮,9'-氧基呋喃酮(3)和8-甲基-9'-氧基呋喃酮(4),以及已知的γ-吡喃酮,10'-氧基呋喃酮(1)和8-甲基-10'-氧基呋喃酮(2)。这些γ-吡喃酮显著抑制了培养的幼鼠颅骨中由牛甲状旁腺激素(PTH)诱导的钙释放。这是首次发现γ-吡喃酮对骨吸收有抑制作用,这些化合物可能是新型骨质疏松药物的种子化合物。