Browsing Faculty of Health Sciences (FHS) by Author "Ichimaru, M"

Now showing items 1-6 of 6

    • Chemical studies on the roots of Uvaria welwitschii. 

      Moriyasu, M,; Nakatani, N; Ichimaru, M; Nishiyama, Y; Kato, A,; Mathenge, S.G; Juma, F.D; Chalo Mutiso, P.B (2011)
      A chemical investigation of the chloroform extract of the roots of Uvaria welwitschii (Annonaceae), an African traditional medicine taken for stomach ache, led to the isolation of eight new compounds, named welwitschins ...

    • Cytotoxic C-benzylated dihydrochalcones from Uvaria acuminata 

      Ichimaru, M; Nakatani, N; Takahashi, T; Nishiyama, Y,; Moriyasu, M; Kato, A,; Mathenge, S.G; Juma, FD; Nganga, JN (2004)
      Two new C-benzylated dihydrochalcones, isochamuvaritin (1) and acumitin (2), have been isolated from the African medicinal plant Uvaria acuminata, together with the previously reported benzylbenzoate (3), uvaretin (4), ...

    • Hydroxyespintanol and schefflerichalcone: two new compounds from Uvaria scheffleri. 

      Ichimaru, M; Nakatani, N,; Moriyasu, M,; Nishiyama, Y,; Kato, A; Mathenge, S.G; Juma, F.D; ChaloMutiso, P.B (2010)
      A chemical investigation of the petroleum ether extract and chloroform extract of the root of Uvaria scheffleri Diels (Annonaceae) led to the isolation of two new compounds, named hydroxyespintanol (1) and schefflerichalcone ...

    • Minor Flavanones from Erythrina abyssinica 

      Moriyasu, M; Ichimaru, M; Nishiyama, Y; Kato, A; Mathenge, SG; Juma, FD; Nganga, JN (Department of Botany, University of NairobiDepartment of Medicine, University of Nairobi,Department of Natural Medicinal Chemistry, Kobe Pharmaceutical University, Motoyamakita-machi, Higashinada-ku, Kobe 658, Japan, 1998)
      Four new prenylated flavanones, abyssinone-V 4'-methyl ether (1) and abyssinoflavanones IV (2), V (3), and VI (4), have been isolated as minor flavanones from the African medicinal plant, Erythrina abyssinica, together ...

    • Quaternary isoquinoline alkaloids from Xylopia parviflora. 

      Nishiyama, Y; Moriyasu, M,; Ichimaru, M; Iwasa, K,; Kato, A,; Mathenge, SG; Chalo Mutiso, PB; Juma, FD (2004)
      From the quaternary alkaloidal fraction of the bark and the root of Xylopia parviflora (Annonaceae), four isoquinoline alkaloids, xylopinidine, dehydrocoreximine, N, N-dimethylanomurine and N-methylphoebine were isolated ...

    • Secondary and tertiary isoquinoline alkaloids from Xylopia parviflora. 

      Nishiyama, Y,; Moriyasu, M; Ichimaru, M; Iwasa, K,; Kato, A; Mathenge, SG; Chalo Mutiso, PB; Juma, FD (2006)
      From the secondary and tertiary alkaloidal fractions of the root and the bark of Xylopia parviflora (Annonaceae), the isoquinoline alkaloids, 10,11-dihydroxy-1,2-dimethoxynoraporphine and parvinine were isolated, along ...