Novel analogues of diterpenoid alkaloids from ring distortion of talatisamine, a potassium ion channel blocker
作者:Hua Tang、Qi-Feng Chen、Xiao-Yu Liu、Hua Zhang、Dong-Lin Chen、Feng-Peng Wang
DOI:10.1016/j.tet.2016.01.030
日期:2016.3
Thirteen newanalogues of diterpenoid alkaloids were synthesized from the potassium ion channel blocker talatisamine (1) by means of the ring-distortion strategy. Most of these derivatives are unique by featuring differentiated CD rings compared to the corresponding naturally-occurring alkaloids. Remarkable transformations including a novel rearrangement (1→7 and 13→7), an intriguing fragmentation
通过环畸变策略,由钾离子通道阻滞剂塔拉他胺(1)合成了13种新的二萜类生物碱类似物。与相应的天然生物碱相比,这些衍生物大多数具有独特的CD环特征。显着转变,包括一种新颖的重排(1 → 7和13 → 7),一个有趣的片段化(16 → 8),以前所未有的C-的制备一起均聚- d -nor衍生物12,在该研究中所公开的。
Pelletier, S. William; Srivastava, Santosh K.; Joshi, Balawant S., Heterocycles, 1985, vol. 23, # 2, p. 331 - 338
作者:Pelletier, S. William、Srivastava, Santosh K.、Joshi, Balawant S.
DOI:——
日期:——
LI, SUK KIM;BYNG, SIK AN;DUTSCHEWSKA, H., PLANT. MED. ET PHYTOTHER., 24,(1990) N, C. 1-6
作者:LI, SUK KIM、BYNG, SIK AN、DUTSCHEWSKA, H.
DOI:——
日期:——
Regioselective<i>O</i>-demethylation of two C<sub>19</sub>-diterpenoid alkaloids
作者:Xiao-Xia Liang、Qiao-Hong Chen、Feng-Peng Wang
DOI:10.1080/10286020.2011.582038
日期:2011.7
demethylations of two C19-diterpenoid alkaloids, 2 and 3, have been achieved with HBr–HOAc, trimethylsilyl iodide, or BBr3. It was observed that HBr–HOAc is an optimal demethylating agent for these two C19-diterpenoid alkaloids because it could provide different O-demethylation products by using different reaction temperature and reaction time. Especially, 1-O-methyl group in 2 and 3, one of the most difficult