Citation: Tang Yue, Wang Min, Ding Yong, Li Jine, Chen Yihua. Improvement of Paulomycin Stability by Addition of Paulic Acid[J]. Chinese Journal of Organic Chemistry, ;2018, 38(9): 2420-2426. doi: 10.6023/cjoc201805045 shu

Improvement of Paulomycin Stability by Addition of Paulic Acid

Tang Yue ^a,b ,
Wang Min ^a ,
Ding Yong ^a,b ,
Li Jine ^a ,
Chen Yihua ^a,b,,

a.
State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101
b.
University of Chinese Academy of Sciences, Beijing 100049

Corresponding author: Chen Yihua, chenyihua@im.ac.cn
Received Date: 28 May 2018
Revised Date: 22 June 2018
Available Online: 5 September 2018
Fund Project: the National Natural Science Foundation of China 31670032the National Natural Science Foundation of China 31522001Project supported by the National Natural Science Foundation of China (No. 31670032 & 31522001)

Figures(6)

Paulomycins are a group glycoside antibiotics produced by Streptomyces, which not only show excellent antibacterial activities against gram-positive bacteria, but also display good antitumor activities. The paulic acid moiety is one of the structures that cause the instability of paulomycin. This study aimed to improve the stability of paulomycins. When small molecule thiol compound N-acetylcysteamine (SNAC) was added to the fermentation broth of paulmycin producing strain, four new paulomycin derivatives of palsimycins A, B, C, and D were obtained. The antibacterial activity evaluation showed that the minimal inhibit concentrations (MICs) of palsimycin A and palsimycin B against the tested strains were at the same level as those of paulomycin A and paulomycin B. The stability test revealed that under the same conditions, palsimycin A, B, C, and D were all more stable than paulomycin A and paulomycin B. In conclusion, without scarifying the antibacterial activity, this study increased the stability of paulomycin by the addition of paulic acid with SNAC, which laid a foundation for further research and application of paulomycins.
- paulomycin,
- structure identification,
- stability,
- antibacterial activity
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