STRUCTURES OF TWO NEW HALOGENATED CHAMIGRANE-TYPE SESQUITERPENOIDS FROM THE RED ALGALAURENCIA NIPPONICAYAMADA
摘要:
Two new halo-chamigrane derivatives have been isolated from the title alga and the structure of one of them was determined on the basis of the spectral and chemical evidence. The structure of another compound was established by X-ray diffraction study of its monoacetate epoxide.