Delphinium

Lycoctonine is also the basic, hydrolytic product of some delphinium alkaloids (pp. 694-6). 

Delphinium app., of which the larkspur is a familiar example, have often been the cause of poisoning in cattle and a few have been used as... 

Delphinium ajacis L. From the seed of this species Keller and Volker isolated two crystalline alkaloids which they named ajacine and ajaconine. Their work was reviewed by Hunter, who reported the presence of four alkaloids, viz., ajacine, ajaconine and new alkaloids ajacinine and ajaci-noidine (amorphous). Goodson described ajacine in detail (1944) and later reported the isolation of ajaconine and three more bases distinguished as B, C and D. According to Hunter, lycoctonine (p. 686) is probably also present. 

Delphinium confusum. Pop. From this Russian species Rabinovich and Konovalova isolated the following alkaloid —... 

Delphinium sp. From an unidentified species of delphinium the following alkaloid was isolated by Rabinovitch and Konovalova. ... 

Delphinium Staphisagria L. From the seeds of this species, the oil of which is used as a pediculicide, Brandes isolated delphinine in 1819, and this and other alkaloidal components were subsequently examined by various workers including Marquis, Kara-Stojanov, Ahrens, Keller, Walz and most recently by Jacobs and Craig. ... 

Methyllycaconitine (MLA) Delphinium brownii a7,a8,a9,a10/some invertebrate nAChRs... 

Dodd, S. C. and Helenurm, K. 2000. Floral variation in Delphinium variegatum (Ranunculaceae). Madrono 47 116-126. 

Warnock, M. J. 1990a. New taxa and combinations in North American Delphinium (Ranuncula-... 

The genera of Aconitum (commonly known as Monkshood) and Delphinium, and to a lesser extent Rumex, Consolida, and Spiraea, have long been recognized as a rich source of alkaloid natural products [1], The diterpenoid alkaloids are generally classified into two major groups the Ci9-diterpenoid alkaloids (sometimes referred to as the Cig-norditerpenoid alkaloids) and the C2o-diterpenoid alkaloids. Within the C2o-diterpenoid alkaloids, at least 11 separate classes have been isolated, including the hetisine alkaloids (Chart 1.1). 

TLC and HPLC have been applied for the separation of the flower pigments of some Delphinium species. Anthocyanins were extracted with 70 per cent aqueous ACN containing... 

Fig. 2.94. Chemical structures of the main anthocyanins found in the petals of Delphinium cultivars. Reprinted with permission from K. Honda et al. [226].

K. Honda, K. Tsutsui and K. Hosokawa, Analysis of the flower pigments of some Delphinium species and their interspecific hybrids produced via ovule culture. Sci. Hort. 82 (1999) 125-134. 

Two new norditerpene alkaloids linearilobin and linearilin were isolated from Delphinium linearilobum (Trautv.) N. Busch. The antioxidant activity was established by using DPPH and metal chelating activity tests. 

Keywords Alkaloids, antioxidant activity, Aconitum cochleare. Delphinium linearilobum, diterpen, norditerpen, spectroscopy... 

There is a long history of the use of Aconitum, Delphinium and Consolida species as the source of poisons and medicinals [1]. These three genera in Ranunculaceae family yield diterpenoid and norditerpenoid alkaloids. The name Delphinium derived from dolphine-delphine due to the shape of their flower buds [2]. Aconitum has an evil reputation from the antiquity [3]. The plant was used as poison in old Greece, also in north-west Pacific the natives used it to poison the whales and also as arrow poison. In England in the ancient times the plant was used against wolves, boars, tigers as well as against rodents, and it was also a homicide material [4]. 

The history of Delphinium is more peaceful, although, due to its poisinous property it was used against mammals. Crushed seeds of Delphinium staphisagria L. was used against body lice [5]. British army used the plant for this aim in Waterloo war as well as in the Great War. Medicinal use of Aconitum and Delphinium spans... 

Chemical and Biological Studies with anAconitum and a Delphinium Species... 

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