Dihydroisopimaric acid 在全细胞电压钳位下能够激活 BK 通道 alphabeta1。
体外研究这些化合物(10 μM)对 HEK BKαβ1 细胞膜电位的影响通过使用 DiBAC(4)(3) 进行监测,这是一种电压敏感性染料。Dihydroisopimaric acid 引起显著的膜超极化。在全细胞电压钳位下直接测量 BKαβ1 的开放时,Dihydroisopimaric acid(1-10 μM)能够激活该通道。
Examination of the heartwood of Dacrydium bidwillii has shown the presence of isopimara-7,15-diene, isopimaradienal, isopimaradienol, manool, torulosol, β-sitosterol, and isopimaric acid. A nor-diterpene isolated was shown to be 18-nor-isopimaradien-4a-ol (I), and this was confirmed by its synthesis from isopimaradienal.