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  1. Article: A new sesquiterpene from South African wild ginger (Siphonochilus aethiopicus (Schweinf) B.L. Burtt)

    Al-Tannak, Naser F. / Anyam, John V. / Igoli, Ngozichukwuka P. / Gray, Alexander I. / Alzharani, Mansour A. / Igoli, John O.

    Natural product research. 2022 Sept. 21, v. 36, no. 19

    2022  

    Abstract: A new eusdesmane sesquiterpenoid, characterised as 5-acetoxy-9aβ-hydroxy-4aαH-3,5α, 8aβ-trimethyl-4, 4a, 6, 7, 8a, 9-hexahydronaphtho-([2, 3 b]-dihydrofuran-2-one)-8-one or phaeusmane F acetate (1) has been isolated from the rhizomes of the South African ...

    Abstract A new eusdesmane sesquiterpenoid, characterised as 5-acetoxy-9aβ-hydroxy-4aαH-3,5α, 8aβ-trimethyl-4, 4a, 6, 7, 8a, 9-hexahydronaphtho-([2, 3 b]-dihydrofuran-2-one)-8-one or phaeusmane F acetate (1) has been isolated from the rhizomes of the South African variety of wild ginger (iphonochilus aethiopicus (Schweinf) B.L. Burtt). The compound was obtained after a series of column and gel filtration chromatography. Its structure was elucidated by NMR and Mass-Spectrometric analyses, including 1 D-, 2 D-NMR and HR-LCMS. This is an initial report of the compound from a Siphonochilus sp. Previously isolated similar compounds from the plant material were 4aαH-3,5α,8aβ-trimethyl-4,4a,8a,9-tetrahydronaphtho[2,3b]-furan-8-one (siphonochilone) (2), 9aβ-hydroxy-4aαH-3,5α,8aβ-trimethyl-4,4a,8a,9-tetrahydronaphtho-([2,3b]-dihydrofuran-2-one)-8-one (3), 4aαH-3,5α,8aβ-trimethyl-4,4a,8a,9-tetrahydronaphtho-([2,3b]-dihydrofuran-2-one)-8-one (4), 2-hydroxy-4aαH-3,5α,8aβ-trimethyl-4,4a,8a,9-tetrahydro-naphtho[2,3b]- furan-8(5H)-one (5), 4aαH-3,5α,8aβ-trimethyl-4,4a,8a-trihydronaphtho-([2,3b]-dihydrofuran-2-one)-8-one (6).
    Keywords acetates ; gel chromatography ; ginger ; research ; sesquiterpenoids
    Language English
    Dates of publication 2022-0921
    Size p. 4943-4948.
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786419.2021.1914029
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: A new sesquiterpene from South African wild ginger (

    Al-Tannak, Naser F / Anyam, John V / Igoli, Ngozichukwuka P / Gray, Alexander I / Alzharani, Mansour A / Igoli, John O

    Natural product research

    2021  Volume 36, Issue 19, Page(s) 4943–4948

    Abstract: A new eusdesmane sesquiterpenoid, characterised as 5-acetoxy- ... ...

    Abstract A new eusdesmane sesquiterpenoid, characterised as 5-acetoxy-9a
    MeSH term(s) Asarum ; Furans/chemistry ; Furans/pharmacology ; Sesquiterpenes/chemistry ; Sesquiterpenes/pharmacology ; South Africa ; Zingiberaceae/chemistry
    Chemical Substances Furans ; Sesquiterpenes
    Language English
    Publishing date 2021-05-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 2185747-7
    ISSN 1478-6427 ; 1478-6419
    ISSN (online) 1478-6427
    ISSN 1478-6419
    DOI 10.1080/14786419.2021.1914029
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Two New Antiprotozoal Diterpenes From the Roots of

    Anyam, John V / Daikwo, Priscilla E / Ungogo, Marzuq A / Nweze, Nwakaego E / Igoli, Ngozichukwuka P / Gray, Alexander I / De Koning, Harry P / Igoli, John O

    Frontiers in chemistry

    2021  Volume 9, Page(s) 624741

    Abstract: The powdered roots of the medicinal ... ...

    Abstract The powdered roots of the medicinal plant
    Language English
    Publishing date 2021-04-21
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711776-5
    ISSN 2296-2646
    ISSN 2296-2646
    DOI 10.3389/fchem.2021.624741
    Database MEDical Literature Analysis and Retrieval System OnLINE

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