Abstract
Two new eudesmane-type sesquiterpenoid lactones, named chlorelactone A (1) and chlorelactone B (2), and one new labdane-type diterpenoid, named elatiorlabdane (3), along with seven known sesquiterpenoids and one known disesquiterpenoid were isolated from the whole plants of Chloranthus elatior. Their structures and relative configurations were established on the basis of extensive spectroscopic analysis. Electronic Supplementary MaterialSupplementary material is available for this article at 10.1007/s13659-012-0039-7 and is accessible for authorized users.
Highlights
The genus Chloranthus (Chloranthaceae) has about 17 species in the world, and 13 species and 5 varieties of this genus are distributed in China.[1,2]
Some plants of this genus have been used in Chinese folk medicine for the treatment of bone fractures.[3]. Previous work on this genus indicated that sesquiterpenoids and disesquiterpenoids were their major secondary metabolites.[4,5,6,7,8,9,10,11]
In the course of our group searching for new sesquiterpenoids from Chloranthus species, two new eudesmane-type sesquiterpenoid lactones, named chlorelactone A (1) and chlorelactone B (2), and one new labdane-type diterpenoid, named elatiorlabdane (3), along with seven known sesquiterpenoids, spathulenol (4),14 4αhydroxy-5α,8β(H)-eudesm-7(11)-en-8,12-olide (5),6 4αhydroxy-5α,8α(H)-eudesm-7(11)-en-8,12-olide (6),[6] neolitacumone B (7),[15] chlorantholide D (8),8 4α,8β-dihydroxy5α(H)-eudesm-7(11)-en-8,12-olide (9),[6] chloranthalic acid (10),[16] and one disesquiterpenoid, chloramultilide C (11)[17] were isolated from the whole plants of C. elatior
Summary
The genus Chloranthus (Chloranthaceae) has about 17 species in the world, and 13 species and 5 varieties of this genus are distributed in China.[1,2] Some plants of this genus have been used in Chinese folk medicine for the treatment of bone fractures.[3]. HRESIMS at m/z 273.1463 1H NMR spectrum J = 11.4, 4.1 Hz) and 4.81 NMR spectrum (Table 1)
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