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- W2044542969 abstract "The reaction of 3-oxo derivative I and 1-oxo derivative XII of 19β,28-epoxy-18α-oleanane with peracids leads to corresponding lactones II or XIII , respectively, which were converted to A-seco acids III, V , and XIV and esters IV, VI, VII , and XV . Under acid catalysis oxidation of ketone I results in the degradation of one methyl group in position 4 and formation of compounds VIII and IX . On reaction with 3-chloroperbenzoic acid the α,β-unsaturated ketone XVI gives epoxyketone XVII ." @default.
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- W2044542969 date "1985-01-01" @default.
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- W2044542969 title "Oxidation of 19β,28-epoxy-18α-oleanan-3-one and -1-one with peracids" @default.
- W2044542969 doi "https://doi.org/10.1135/cccc19852753" @default.
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