ABSTRACT
Objective: To study the diterpenoid alkaloids in the aerial parts of Aconitum transsectum. Methods The compounds were isolated and purified by silica gel and Sephadex LH-20 chromatography from the aerial parts of A. transsectum, and the structures were identified by spectral analysis (1H-NMR, 13C-NMR, MS). Results: A total of 16 compounds were isolated from A. transsectum and characterized as longtoaconitine A (1), 14-acethyltalatisamine (2), 8-O-methylsachaconitine (3), talatisamine (4), vilmorrianine D (5), 14-acetylsachaconitine (6), forestine (7), chasmanine (8), crassicausine (9), homochasmanine (10), crassicautine (11), 8-deacetylyunaconitine (12), liljestrandisine (13), vilmorrianine B (14), yunaconitine (15), and isotalatizidine (16). Conclusion: Compounds 1-16 are isolated from aerial parts of A. transsectum for the first time, and compounds 1, 3, 9-11, 13-14, and 16 are isolated from A. transsectum for the first time.
ABSTRACT
Objective To study the chemical constituents in the roots of Aconitum hemsleyanum var. circinatum. Methods The constituents were isolated and purified by silica gel chromatography from the roots of Aconitum hemsleyanum var. circinatum, and the structures were identified by spectral analysis (1H-NMR, 13C-NMR, and MS). Results Seventeen compounds were isolated from Aconitum hemsleyanum var. circinatum and characterized as sachaconitine (1), 8-O-methylsachaconitine (2), liljestrandisine (3), talatisamine (4), chasmannine (5), 8-O-methyltalatisamine (6), 14-O-acetyltalatisamine (7), 8-deacetyl-yunaconitine (8), crassicautine (9), crassicaudine (10), crassicauline A (11), vilmorianine C (12), vilmorianine A (13), yunaconitine (14), transconitine B (15), kongboendine (16), and franchetine (17). Conclusion Seventeen compounds are isolated from Aconitum hemsleyanum var. circinatu. Compounds 2-3, 6-7, 9, and 12-16 are isolated from Aconitum hemsleyanum var. circinatum for the first time.