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Allergenic component of a liverwort: a sesquiterpene lactone.

Knoche, H; Ourisson, G; Perold, G W; Foussereau, J; Maleville, J.

Science ; 166(3902): 239-40, 1969 Oct 10.

Article in English | MEDLINE | ID: mdl-5809596

ABSTRACT

Frullania spp. (Hepaticae, Jungermanniales) are agents of allergies. Extraction and fractionation of Frullania tamarisci has given, as the only allergenic component isolated, a levorotatory crystalline sutbstance, the structure of which is demonstrated. It is a sesquiterpene lactone. The racemic (+/-) form is isolated from a mixed sample of Frullania tamarisci and Frullania dilatata; the dextrorotatory form, from Frullania dilatata. The observed allergenic properties are shared by some other-sesquiterpene lactones.

Subject(s)

Dermatitis, Contact/chemically induced , Lactones/isolation & purification , Plants , Terpenes/isolation & purification , Chromatography, Gel , Humans , Lactones/toxicity , Magnetic Resonance Spectroscopy , Plant Extracts/toxicity , Stereoisomerism , Terpenes/toxicity

[Photolysis of dihydro-1,2-(6 beta, ll alpha and ll beta)-santonins. A stereospecific intramolecular photosensitization]. / Photolyse des dihydro-l,2-(6 beta, ll alpha et ll beta)-santonines. Une photosensibilisation intramoléculaire stéréospécifique.

Perold, G W; Ourisson, G.

Tetrahedron Lett ; (44): 3871-3, 1969 Sep.

Article in French | MEDLINE | ID: mdl-5348313

Subject(s)

Santonin , Chemical Phenomena , Chemistry , Light

Beta-aryl-alpha-oxoglutaric acids.

Perold, G W; Hundt, H K.

J Chem Soc Perkin 1 ; 21: 1924-6, 1966.

Article in English | MEDLINE | ID: mdl-5950884

Subject(s)

Ketoglutaric Acids , Lactones , Chemical Phenomena , Chemistry

Crystalline phlorin from Viscum rotundifolium: a novel extraction procedure.

Michael, J P; Meikleham, N E; Perold, G W.

Planta Med ; 61(3): 296, 1995 Jun.

Article in English | MEDLINE | ID: mdl-17238085

Metabolites of Proteaceae. VII. Lacticolorin, a phenolic glucoside ester, and other metabolites of Protea lacticolor Salisb.

Perold, G W; Beylis, P; Howard, A S.

J Chem Soc Perkin 1 ; 6: 638-43, 1973.

Article in English | MEDLINE | ID: mdl-4736393

Subject(s)

Glycosides/isolation & purification , Plants, Medicinal/analysis , Benzoates/isolation & purification , Methods , Phenols/isolation & purification

Metabolites of proteaceae. 8. The occurrence of (+)-D-allose in nature: rubropilosin and pilorubrosin from Protea rubropilosa Beard.

Perold, G W; Beylis, P; Howard, A S.

J Chem Soc Perkin 1 ; 6: 643-9, 1973.

Article in English | MEDLINE | ID: mdl-4736394

Subject(s)

Glycosides/isolation & purification , Plants, Medicinal/analysis , Benzoates/isolation & purification , Cinnamates/isolation & purification , Methods , Phenols/isolation & purification

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