Torreya nucifera

In the study reported here, Taxus baccata, T. canadensis (2/2), Taxus sp., and T. speciosa, all previously recorded as giving positive alkaloid tests, were positive. Phyllocladus alpinus (now assigned to a unigcneric family, Phyllocladaceae) and Torreya nucifera were also positive. 

Dendrolasin Lasius (Dendrolasius) fuliginosus, Torreya nucifera... 

Wood oil from Torreya nucifera Sieb. et Zucc. [T. Sakai, K. Nishimura, and Y. Hirose, Bull. 

Torreya nucifera (L.) Siebold Zucc. (leaves) Amentoflavone (1). Traditionally used as a medicinal plant in Asia. The ethanol extraet showed good SARS-CoV 3CL inhibitory aetivity (62% at 100 pg/mL). Amentoflavone (1) showed the most potent 3CL inhibitory effeet (IC5o=8.3 pM). Inhibitory aetivity appeared to be assoeiated with the presenee of an apigenin moiety at position C-3 of flavones, as biflavone had an effeet on 3CL inhibitory aetivity. Ryu et al., 2010 [442]. 

CisHjjO, Mr 218.34, oil, bp. 148-150°C (2.13 kPa). Alarm and defence substance of the ant species Lasius (Dendrolasius) fuliginosus K D. also occurs in the leaves of Torreya nucifera (Taxaceae) as well as in marine organisms. For synthesis, see Ut.. ... 

CijHjoO, Mr 216.32, oil, bp. 108 C (4 Pa), [a]o +37.6° (CHClj), a sesquiterpene aldehyde with the bisabo-lene skeleton, isolated from Torreya nucifera. The corresponding alcohol, nuciferol (C15H22O. Mr 218.34) is also present in the plant. 

Nuciferol (Sakai et al., 1965) is a constituent of Torreya nucifera, the Japanese nutmeg-yew, and bisabolangelone is a constituent of the small shrub Angelica sil-vestris and a few other members of the Umbelliferae. Bisabolangelone has been reported to be an antifeedant, that is, a material that discourages foraging of leaves on (or in) which it is found by herbivores. 

Sakai, T., K. Nishimura, and Y. Hirose Structure and Stereochemistry of Four New Sesquiterpenes Isolated from the Wood Oil of Torreya nucifera. Bull. Chem. Soc. Japan 38, 381 (1965) Chem. Abstr. 63, 3 003d (1965). 

I. On the flavonoid from the leaves of Torreya nucifera Sieb. et Zucc. J Pharm Soc Jpn 78 1010-1013... 

Sakai T, Nishimura K, Hirose Y 1965 The structure and stereochemistry of four new sesquiterpenes isolated from the wood oil of Kaya (Torreya nucifera). Bull Chem Soc Jpn 38 381-387... 

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