来自鼻花根的萘醌酯。
Naphthoquinone esters from the root of Rhinacanthus nasutus.
作者信息
Wu T S, Hsu H C, Wu P L, Leu Y L, Chan Y Y, Chern C Y, Yeh M Y, Tien H J
机构信息
Department of Chemistry, National Cheng Kung University, Tainan, Taiwan, R.O.C.
出版信息
Chem Pharm Bull (Tokyo). 1998 Mar;46(3):413-8. doi: 10.1248/cpb.46.413.
Reinvestigation of the root of Rhinacanthus nasutus afforded, in addition to rhinacanthin-A to -D reported previously, two new dimethyldihydropyranonaphthoquinone esters (5, 6) and eight new 2-hydroxy-1,4-naphthoquinone esters (7-14) were isolated. The stereochemistry of rhinacanthin-A was determined as the R configuration. Compounds rhinacanthin-G to -N, belong to a class of 2-hydroxy-3-(3-hydroxy-2,2-dimethylpropyl)-1,4-naphthoquinone esters, and so far have been isolated only in this plant. Their biosynthesis is also discussed.
对鼻叶龙根进行重新研究时，除了之前报道的鼻叶龙素A至D外，还分离出了两种新的二甲基二氢吡喃萘醌酯（5和6）以及八种新的2-羟基-1,4-萘醌酯（7至14）。确定了鼻叶龙素A的立体化学构型为R构型。化合物鼻叶龙素G至N属于2-羟基-3-(3-羟基-2,2-二甲基丙基)-1,4-萘醌酯类，迄今为止仅在该植物中分离得到。还讨论了它们的生物合成。
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