Identification and synthesis of homoterpenoids emitted from elm leaves after elicitation by beetle eggs
Egg deposition of the elm leaf beetle Xanthogaleruca luteola on the leaves of the field elm causes the emission of volatiles attracting the parasitoid Oomyzus gallerucae. The present study describes the identification and synthesis of the homoterpenoids:
Boric acid compound, borate compound and their preparation methods and application
The invention provides a boric acid compound and a borate compound shown as formula I and formula II which are shown in the description, and their preparation methods, application and pharmaceutical compositions. The boric acid compound and the borate compound can inhibit proteasome and are suitable for treating multiple myeloma.
-
Paragraph 0172; 0173
(2018/12/02)
Synthesis of (-)-idiadione, a furanosesterterpene isolated from a marine sponge Spongia idia
(-)-Idiadione (1) , a furanosesterterpene isolated from a marine sponge Spongia idia, was synthesized, starting from (S)-(-)-citronellal (2). The absolute configuration of naturally occurring 1 is established as (S).