Browsing Life Sciences by Author "Edwards, Raymond L."
Metabolites of the Higher Fungi. Part 32. , a phytotoxic bicyclo[4.1.0]hept-3-en-2-one from the fungus Rosellinia necatrix Prill.Edwards, Raymond L.; Maitland, Derek J.; Scowen, Ian J.; De Sousa, A.J.T.; Whalley, A.J.S. (2001)Rosnecatrone 7 is a phytotoxic metabolite isolated from cultures of a virulent strain of the fungus Rosellinia necatrix. The compound is identified as 5-hydroxy-4-hydroxymethyl-1-(1-hydroxy-3-methylbut-2-enyl)-3-[(E)-propenyl]-7-oxabicyclo[4.1.0]hept-3-en-2-one by chemical and physical methods. The absolute configuration is determined
Metabolites of the Higher Fungi. Part 33. Grammicin, a novel bicyclic C7H6O4 furanoppyranol from the fungus Xylaria grammica (Mont) Fr.Maitland, Derek J.; Edwards, Raymond L.; Pittayakhajonwut P.; Whalley, A.J.S. (2009-05-20)Grammicin 1 from Xylaria grammica is identified as 4-hydroxy-4H-furo[2,3-b]pyran-2(7aH)-one by chemical and physical methods. 4-Oxo-4H-pyran-3-acetic acid (¿-pyrone-3-acetic acid) 2 is a co-metabolite and the conversion of 1 into 2 is discussed.