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Abstract
Two new piperidine alkaloids, streptazones E (1) and F (2), were isolated from Streptomyces sp. NEAU-Z4. Their structures were elucidated on the basis of MS and NMR analysis.
Acknowledgments
This work was supported in part by grants from NKPBR (No. 2010CB126102) and NNSF (Nos. 30971937 and 30771427) of China, the Special Foundation for Scientific and Technological Innovation Research of Harbin (No. 2011RFXXN038), and NSF of Heilongjiang Province (No. C201029).