Oxidation ofaconitine by potassium permanganate. A new N-de-ethyl-7,17-secoimino derivative
作者:M. N. Sultankhodzhaev
DOI:10.1007/s10600-010-9492-x
日期:2009.11
The alkaloid aconitine was oxidized by potassium permanganate in aqueous acetone. It was shown that the oxidation formed three products including the previously described N-de-ethylaconitine, N-de-ethyl-19-oxoaconitine, and a new N-de-ethyl-7,17-secoimino derivative. The structure of the new product was proposed based on spectral data (IR, mass, PMR and 13C NMR spectra).
Deoxygenation reactions of c19-diterpenoid alkaloids
作者:Palaniappan Kulanthaivel、S.William Pelletier
DOI:10.1016/s0040-4020(01)86133-0
日期:1988.1
thiocarbonylimidazolyl derivatives: 14-acetyldelcosine (13) to 14-acetyl-l-deoxydelcosine (22); alkalinehydrolysis of 22 gave 1-deoxydelcosine (23); aconitine (24) to 3-deoxyaconitine (27); yunaconitine (25) to crassicauline A (28). Deoxygenation of 14-acetyldictyocarpine (30) via the chloro-derivative 31 gave 14-acetyl-10-deoxydictyocarpine (34). Reduction of 31 with LiAlH4 gave the unusualelimination product