【摘要】 从云南美登木茎皮组织分离得到内生菌Ly221,经16S rDNA部分核酸序列鉴定该菌属于链霉菌属(Streptomyces)。从其液体发酵提取物中分离得到5个化合物,经波谱分析鉴定其结构分别为:4,10-dihydroxy-10-methyl-dodec-2-en-1,4-olide(1)、两个非对映异构体4,11-dihydroxy-10-methyldodec-2-en-1,4-olides(2/3)、4-hy-droxy-10-methyl-11-oxo-dodec-2-en-1,4-olide(4)和N-acetyltyramine(5)。更多还原

【Abstract】 The strain Ly221 was isolated from the branch tissue of Maytenus hookeri and determined to be a member of Streptomyces according to the 16S rDNA sequence.The extracts from the fermentation broth of Streptomyces sp.Ly221 were purified,and five compounds were obtained.They were identified to be 4,10-dihydroxy-10-methyl-dodec-2-en-1,4-olide(1),two diastereomeric 4,11-dihydroxy-10-methyldodec-2-en-1,4-olides(2/3),4-hydroxy-10-methyl-11-oxo-dodec-2-en-1,4-olide(4) and N-acetyltyramine(5) based on spectral data,respectively.更多还原