chrysophanol, and urinary metabolite M9 originated from the degradation of biliary GSH conjugation M6. Recombinant P450 enzyme incubation and microsome inhibition studies demonstrated that P450 1A2 was the primary enzyme responsible for the metabolicactivation of chrysophanol and that P450 2B6 and P450 3A4 also participated in the generation of the oxidative metabolites. These findings helped us to understand
Howard; Raistrick, Biochemical Journal, 1949, vol. 44, p. 227,232
作者:Howard、Raistrick
DOI:——
日期:——
Anthraquinone, anthrone and phenylpyrone components of Aloe nyeriensis var. kedongensis leaf exudate
作者:John M. Conner、Alexander I. Gray、Tom Reynolds、Peter G. Waterman
DOI:10.1016/s0031-9422(00)84578-1
日期:——
The leaf exudate of Aloe nyeriensis var. kedongensis yielded six compounds which were identified on the basis of spectral data and inter-conversions as two groups of three allied compounds. These were (a) 4-methoxy-6-(2'',4''-dihydroxy-6''-methylphenyl)-pyran-2-one, its 2''-O-.beta.-D-glucopyranoside (aloenin) and the 2"-O-p-coumaroyl ester of aloenin, (b) the anthracene derivatives 1,2,8-trihydroxy-6-methylanthraquinone (nataloe-emodin), its 2-O-.beta.-D-glucopyranosyl ester and the corresponding 10-C-.beta.-D-glucopyranoside nataloin.
Regioselective Synthesis of O-Methyl Derivatives of the Trihydroxy Anthraquinones Morindone and Nataloe-Emodin
作者:Donald W. Cameron、D. Ross Coller
DOI:10.1071/ch99106
日期:——
Cycloaddition chemistry of dichloronaphthoquinones has led to regioselective
syntheses of all regioisomeric α-O- methyl
derivatives of morindone (2) and nataloe-emodin (4), including the natural
anthraquinone ethers (1) and (3).