cis-2,6-Dimethyl-4-{2-methyl-3-[4-(2-methyl-2-propanyl)phenyl]propyl}morpholine or (2R,6S)-4-[3-(4-tert-butylphenyl)-2-methylpropyl]-2,6-dimethylmorpholine
Fenpropimorph is a morpholine-derived fungicide used in agriculture, primarily on cereal crops such as wheat.[1] It has been reported to disrupt eukaryotic sterol biosynthesis pathways, notably by inhibiting fungal Δ14 reductases.[2] It has also been reported to inhibit mammalian sterol biosynthesis by affecting lanosterol demethylation.[2] Although used in agriculture for pest management purposes,[1] it has been reported to have a strong adverse effect on sterol biosynthesis in higher-plants by inhibiting the cycloeucalenol-obtusifoliol isomerase.[3] This inhibition was shown to not only alter the lipid composition of the plasma-membrane,[4] but also impact cell division and growth, in plants.[5]
In addition to its effects on fungi, fenpropimorph is also a very high affinity ligand of the mammalian sigma receptor.[6]
^ abcde"Fenpropimorph"(PDF). Food and Agriculture Organization of the United Nations. Archived from the original(PDF) on 20 November 2004.
^Rahier A, Schmitt P, Huss B, Benveniste P, Pommer EH (February 1986). "Chemical structure-activity relationships of the inhibition of sterol biosynthesis by N-substituted morpholines in higher plants". Pesticide Biochemistry and Physiology. 25 (1): 112–124. doi:10.1016/0048-3575(86)90038-6.
^Hartmann MA, Perret AM, Carde JP, Cassagne C, Moreau P (August 2002). "Inhibition of the sterol pathway in leek seedlings impairs phosphatidylserine and glucosylceramide synthesis but triggers an accumulation of triacylglycerols". Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids. 1583 (3): 285–96. doi:10.1016/S1388-1981(02)00249-4. PMID12176396.