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- Publications
- Influence
Studies in mass spectroscopy—II : Mass spectra of substituted furans
- R. Grigg, M. V. Sargent, D. H. Williams, J. Knight
- Chemistry
- 1965
Abstract The mass spectra of 29 furans, variously substituted with alkyl, aldehyde, ketone, ester, nitrile and nitro groups are reported and discussed. The spectra are generally quite simple and… Expand
Unusual indole alkaloids from Ophiorrhiza blumeana Korth
- D. Arbain, Dachriyanus, Firmansyah, M. V. Sargent, B. W. Skelton, A. H. White
- Chemistry
- 1998
The alkaloid content of two different collections of Ophiorrhiza blumeana Korth. (Rubiaceae) was investigated. The first collection yielded the known alkaloid bracteatine 5 and two new alkaloids… Expand
Kaempferitrin from the leaves of Hedyotis verticillata and its biological activity.
- A. Hamzah, N. Lajis, M. V. Sargent
- Biology, Medicine
- Planta medica
- 1 August 1994
Viroallosecurinine and ent-Phyllanthidine From the Leaves of Breynia coronata (Euphorbiaceae)
- N. H. Lajis, O. B. Guan, M. V. Sargent, B. W. Skelton, A. H. White
- Chemistry
- 1992
Extraction of the fresh leaves of Breynia coronata has yielded the Securinega alkaloids viroallosecurinine (4) and ent-phyllanthidine (6).
The Alkaloids ofOphiorrhiza filistipula
- D. Arbain, D. P. Putra, M. V. Sargent
- Chemistry
- 1993
Extraction of the fresh leaves of Ophiorrhiza filistipula ( Rubiaceae ) has yielded the alkaloids normalindine (2), 7-methoxycamptothecin (6) and strictosidinic acid (II). The configurations of the… Expand
The synthesis of desertorin C, a bicoumarin from the fungus Emericella desertorum
- M. Rizzacasa, M. V. Sargent
- Chemistry
- 1988
The structure of desertorin C, a metabolite of the mould Emericella desertorum, is confirmed as 4,4′,7,7′-tetramethoxy-5,5′-dimethyl-6,8′-bicoumarin (6), by its synthesis in racemic form. The key… Expand
The Alkaloids of Uncaria cf. glabrata
- D. Arbain, Afrida, S. Ibrahim, M. V. Sargent, B. W. Skelton, A. H. White
- Chemistry
- 1998
The isolation of the indole alkaloids uncarine E (17), C (16), D (21), glabratine (29) and deoxycordifoline (30) from the fresh bark of Uncaria glabrata DC. ( Rubiaceae ) is reported. The high-field… Expand
Naturally-Occurring Dibenzofurans. X. A New Synthesis of Di-O-Methylstrepsilin
- R. G. Giles, M. V. Sargent
- Chemistry
- 1986
A new synthesis of 4,8-dimethoxy-10-methylisobenzofuro[5,4- b]benzofuran-3(1H)-one (di-O-methylstrepsilin) (2), a derivative of the lichen dibenzofuran strepsilin (1), is described.
Depsidone synthesis. Part 24. The synthesis of epiphorellic acid 2. A pseudodepsidone and X-ray crystal structure of a grisadienedione epoxide
- M. Comber, M. V. Sargent, B. W. Skelton, A. H. White
- Chemistry
- 1989
The synthesis of the unusual pseudo-depsidone epiphorellic acid 2 (2){6-hydroxy-3-[5-hydroxy-2-methoxycarbonyl-3-(3-oxopentylphenoxy]-4-methoxy-2-pentylbenzoic acid} by a route involving… Expand