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Abstract
A new alkaloid was isolated from the ethyl acetate extract of the culture of a termite-associated Streptomyces koyangensis BY-4. The structure of 1 was elucidated by using MS, NMR, electronic circular dichroism data, and computational approaches. Compound 1 showed weak antimicrobial activities against a panel of test microbes.
Acknowledgments
This work was financially supported by NSFC (81172948 and 21132004), MOE (NCET-10-0477), MOST (2011AA09070204), and CPSF (2011M500898).