A new bicyclic spiroketone was isolated from the bud of Chrysanthemum indicum L. The chemical structure was elucidated as (1R, 9S, 10S)-10-hydroxyl-8 (2', 4'-diynehexylidene)- 9-isovaleryloxy-2, 7-dioxaspiro [5,...A new bicyclic spiroketone was isolated from the bud of Chrysanthemum indicum L. The chemical structure was elucidated as (1R, 9S, 10S)-10-hydroxyl-8 (2', 4'-diynehexylidene)- 9-isovaleryloxy-2, 7-dioxaspiro [5, 4] decane based on the X-ray crystallography.展开更多
文摘A new bicyclic spiroketone was isolated from the bud of Chrysanthemum indicum L. The chemical structure was elucidated as (1R, 9S, 10S)-10-hydroxyl-8 (2', 4'-diynehexylidene)- 9-isovaleryloxy-2, 7-dioxaspiro [5, 4] decane based on the X-ray crystallography.