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yi zuo luo xuan mei su zu fen de yan jiu
SUN Cheng;YU Ru-Gu;YANG Qing-Hua;SHENG Shu-Guang~* and ZHAO Xia-Fen~* Acetylspiramycin has been shown to consist of four closely related components. Based on the data of their spectra;the four components;which were isolated from Chinese made Ac-SPM by classical column chromatography;have been elucidated as diacetylspiramycin Ⅱ;diacetylspiramycin Ⅲ;monoaectylspiramycin Ⅱ and monoacetylspiramycin Ⅲ. respectively.
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