The hydrolysis of 9-O-acetyl derivative of julichrome Q1·3 (I) gave the C9-epimer of I. The configuration of C9-OH of I has been assigned as β by the comparison of the spectroscopic properties of I and its C9-epimer. The conformations and intramolecular H-bonding aspects of both compounds are also discussed.
菊色素Q 1·3(I)的9-O-乙酰基衍
生物的
水解得到I的C 9-受体。通过比较I的光谱性质,将I的C 9 -OH构型指定为β及其C 9受体 还讨论了这两种化合物的构象和分子内H键。