| 摘要 |
Diosmetin derivs. of formula (I) and their diastereomers and/or enantiomers are new. R1 = H, propyl, allyl or 1,2-dideuteroallyl; R2 = H, propyl, allyl, propargyl, 2,3-dihydroxypropyl, (2,2-dimethyl- 1,3-dioxol-4-yl) methyl or 3-acetyloxy-2-hydroxypropyl; R3 = H, propyl, allyl or 1,2-dideuteroallyl; R4 = H, Me, propyl, allyl, propargyl, 2,3-dihydroxypropyl, (2,2-dimethyl- 1,3-dioxol-4-yl)methyl or COR4'; R5 = H, propyl, allyl or 1,2-dideuteroallyl; and R6 = H, Me, propyl, allyl, propargyl, 2,3-dihydroxypropyl, (2,2-dimethyl- 1,3-dioxol-4-yl)methyl, COR6' or a gp. of formula (i); R4', R6' = 1-5C alkyl or Ph; provided that at least one of R1-R6 is other than H; and if R1- R3 = H, then R4 = H. |
