22343-47-1Relevant academic research and scientific papers
Isopimarane diterpenoids from Aeollanthus rydingianus and their antimicrobial activity
Rijo, Patricia,Simoes, Maria Fatima,Duarte, Aida,Rodriguez, Benjamin
, p. 1161 - 1165 (2009)
Four acyloxy-isopimarane derivatives along with two known isopimarane diterpenoids, the flavone cirsimaritin and the sterols β-sitosterol and stigmasterol were isolated from the aerial parts of Aeollanthus rydingianus. The structures of the compounds were
2H N.M.R. Determination of the Stereochemistry of an Allylic Displacement in the Biosynthesis of Virescenol B
Cane, David E.,Hasler, Heinz,Materna, Joan,Cagnoli-Bellavita, Nera,Ceccherelli, Paolo,et al.
, p. 280 - 282 (1981)
Feeding of (5R)-mevalonate to Oospora virescens and 2H n.m.r. analysis of a derivative of the resulting virescenol B establish that the allylic displacement of pyrophosphate which generates ring c takes place with overall anti stereochemistry.
Isopimarane diterpene glycosides, isolated from endophytic fungus Paraconiothyrium sp. MY-42
Shiono, Yoshihito,Kikuchi, Miwako,Koseki, Takuya,Murayama, Tetsuya,Kwon, Eunsang,Aburai, Nobuhiro,Kimura, Ken-Ichi
experimental part, p. 1400 - 1405 (2012/01/12)
Six isopimarane diterpenes, compounds 1-6, were isolated from the endophytic fungus Paraconiothyrium sp. MY-42. Compound 1 possesses a 19-glucopyranosyloxy group. Its structure was first elucidated by spectroscopic data analysis and finally confirmed by X-ray crystallography, whereas structures 2-6 were mainly elucidated based on the analysis of spectroscopic evidence. Compounds 2 and 3 showed moderate cytotoxicities against the human promyelocytic leukemia cell line HL60 (IC50 6.7 μM value for 2 and 9.8 μM for 3).
New diterpenic altrosides of the fungus Acremonium striatisporum isolated from a sea cucumber
Afiyatullov, Shamil Sh.,Kuznetsova, Tatyana A.,Isakov, Vladimir V.,Pivkin, Mikhail V.,Prokofeva, Nina G.,Elyakov, George B.
, p. 848 - 850 (2007/10/03)
Two new diterpenic glycosides, virescenosides M (1) and N (2), have been isolated from a marine strain of Acremonium striatisporum KMM 4401 associated with the holothurian Eupentacta fraudatrix. Their structures were determined on the basis of MS and NMR data as β-D-altropyranosido-19-7-oxo-isopimara- 8,15-diene-2α,3β-diol (1) and β-D-altropyranosido-19-isopimara-7,15-diene- 2α,3β,6β-triol (2). Three other altrosides (3-5), identified as virescenosides A, B, and C from the terrestrial strain Acremonium luzulae, were also isolated. The cytotoxic activity of the virescenosides was examined.
