ORIGINAL RESEARCH ARTICLE | Oct. 24, 2021
Prenylated Benzoquinone and Hydroxylated Benzophenone Glycoside from the Leaf and Stem Bark Extract of Annona muricata (Annonaceae)
Musa Mohammed, Umar M. Tanko, Baba Gabi
Page no 271-276
The EtOAC fraction of the partitioned MeOH portion of the leaf extract of A. muricata was subjected to Si-gel column chromatography. Similar fractions where pooled together on the basis of their TLC profile. This was further re chromatographed on silica gel chromatography to afford red crystallized needles as compound 1. The EtOAC from the partitioned MeOH portion of the stem bark extract of A. muricata, was also subjected to column chromatography, similar fractions with TLC profiles where pooled together and subsequently subjected to a repeated gel filtration techniques over sephadex LH 20 to afford compound 2.Their structures were elucidated as2-(1-methoxy-carbonyl-4-6-dihydroxyphenoxy)-3-methoxy-5,6-di-(3-methoxyl-2-butenyl)-1,4-benzoquinone (1) and 1-O-(4"-O-Caffeoyl)-β-glucopyranosyl-4-dihydroxy-2-(3',3'-dimethylallyl) benzene (2) using standard spectroscopic protocols.