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From the whole plants of E. ritroL., the three new sesquiterpenoids 3α,4α,6α3,13dihydroxyguaia711,1014dieno12,6lactone 1, 3α,4α,6α,11β3hydroxyguai110eno12,6lactone 2, and 11α11,13dihydroarglanilic acid methyl ester =4β,6α,11α4,6dihydroxy1oxoeudesm2en12oic acid methyl ester; 3, together with eight known sesquiterpenoids, were isolated. Their structures were elucidated through analysis of spectroscopic data including extensive 2DNMR. [ABSTRACT FROM AUTHOR]

Two new C20diterpenoid alkaloids named naviculine A 1 and naviculine B 2, were isolated from Aconitum naviculareStapf. Their structures were established by spectral methods, especially 2DNMR spectra 1H,1HCOSY, HMQC, HMBC, and NOESY and DFT methods at the B3LYP6311++G2d,pB3LYP631Gd level, respectively. They were assayed for their antiHIV1 activity. [ABSTRACT FROM AUTHOR]