Isolation and spectral study of 4-methyl
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H. M. Wang; W. Shi; Y. K. Xu; P. Wang; W. Chen; Y. Liu; M. J. Lรผ; J. Q. Pa
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Article
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2003
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John Wiley and Sons
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English
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## Abstract 4โMethylโ6,8โdihydroxyโ7__H__โbenz[__de__]anthracenโ7โone was isolated from the sap of Aloe by column chromatography. Its ^1^H and ^13^C NMR spectra were completely assigned by utilizing twoโdimensional ^1^Hโdetected heteronuclear oneโbond (HMQC) and multipleโbond (HMBC) chemical shift