| 摘要 |
Novel compounds having the structure (I) where R=methyl, ethyl or propyl, R<SUB>1</SUB>=methyl or H, R<SUB>2</SUB>=methyl, ethyl or propyl, R<SUB>3</SUB>=methyl or H, R<SUB>4</SUB>=methyl or ethyl, R<SUB>5</SUB>-H or methyl, and where R<SUB>3 </SUB>and R<SUB>5 </SUB>are not both H, excluding N-ethyl-2-methyl-N-(3-methylphenyl) propanamide, can have desirable odour properties, typically of a tropical fruit, cassis character and find use in perfumes and perfumed products
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