Browsing by Author "Bekele, Amha"

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    Investigation of Flavonoids From Pepaera (Millettla Ferruginea)
    (Addis Ababa,University, 1988-06) Bekele, Amha; Dagne, Ermias (PhD)
    Millettia ferragined (Hochst) Bak..locally knowm as Berbera is a Plant andemic to Ethiopia. Phytochemical Inveftigation of the stem-bark of this plant resulted in the Isolation of lc compounds of which nine have been generated on the remaining one compound.
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    An Investigation of the Flavonoids of Berbera (millpttia ferruqinea)
    (Addis Ababa University, 1988-06) Bekele, Amha; Dajen, Ermias (PhD)
    Mi ~letti a f-?rr ;~~~in~a (Hcc:--'!s-:) BAK .. : ·:>ca.l:y known as Berbera is a pla~t ~~ ~ ·~~ic to ~thi0?:a. P":1ytochemi c~!l.l ir-:ve.=t'::7a+_ic-:1 of t~·;,:: st.eI:l-!:H:1!.-}-: cf ·.:.~:ls I.J :a.!it r-es:..tlted in the isolativ~'" ':. f 2C Gl1mp-;".u'.dz ,)f w~ic~: :--.:ne b -;J.ve b~~ :1 s-~nel-ated on t~e remaini~g 0~~ C0~~0~~d . ~e c~oracter izec ("ompounds are 4-hyG.!"'oxy: o:-'.chocar;· in (4'5) . 4 I hydroxyis01o:1chccdr'pir'..(47 ) ~ fle:1'icnappa::5!'1-B(48) , calopogoniurn isofl avone-B(49). i s oj arna i ci!'1 (5 G) jamaicird511. ichthynone( 52j a:-.d 5-methoxy durn: il one (53) . Three of the i501 ated compounds a ppea ;~ to be nove 1 ar.d are ide::.t i f ied as 5-rr.et:,,)x)' d~.lr!U.i llo.:lc (5. 6--c.imethoxy-3 ' .41- met~y 1 enedioxy-2 ~ .2: I -di met~y: ~'{ra.~ ::,. [5 " ,6 " : 7 .8 ~ isc.flavo: 1e:. iS0jamo.icin (3··-m.eth0Xy·-~·.5-~nt?tr:ylen '?d:oxy- 2 1 : .2 1 1- dimethylpyrano [5 1' ,6 1 1: 7.81 150: ~avcne1 a:1G.. 4 : - ~yd.':"oxyi.s G-- :or:ch.:)car-pin(4' -hydrc.xy-2: I, 21 '-di:netr.y:pyt'"a~ .... :) {5:' .6 t ::7 .81 flavar.one) .