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Insect‐microbial symbioses have vast biochemical diversity, which is beneficial to produce bioactive secondary metabolites. In this study, chemical examination of a Streptomyces sp. associated with a mud dauber wasp led to the isolation of fourteen compounds. Their structures were determined by spectroscopic methods and comparison with literature data. Among the isolates, compounds 1,2,3‐benzotriazin‐4(1...
From the whole plants of Aster himalaicus, a new eudesmane‐type sesquiterpene, 1‐oxoeudesm‐11(13)‐eno‐12,8α‐lactone, along with twelve known compounds, was isolated. The structures of all compounds have been elucidated on the basis of spectroscopic data, including IR, EI‐MS, HR‐ESI‐MS, and 1D‐ and 2D‐NMR data.
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